CH707351A2 - Decoration part for use in e.g. clock element such as dial, has set of cleavage lines of stones mounted in and out with regard to each other such that single base is masked, where material is provided as partially amorphous alloy - Google Patents

Abstract

The part (1) has a set of stones (2) such as diamond, and a fastener (7) that is utilized for fastening of the stones with regard to each other. The fastener is arranged with a single base (9) in a material so as to attach all stones with regard to each other by its faces. A set of cleavage lines (6) of the stones is mounted in and out with regard to each other such that the single base is masked, where the material is provided as a partially amorphous alloy. The base allows attaching of all stones with regard to each other by its cylinder head (4). An independent claim is also included for a method for manufacturing a decoration part.

Description

Field of the invention

The invention relates to an invisible set piece of decoration and, more specifically, a decorative piece including a jewelery or jewelery item forming a paved stone suitable for decorating a surface.

Background of the invention

It is known to crimp precious stones, semi-precious or synthetic using claws, grains or rails. There are also crimps of the invisible type which solidarize the stones by their breech or their crown. In the current state of the techniques of invisible seam, there are many methods (by milling, casting, clipping, screwing, etc.) which according to well-defined systems have many disadvantages: the natures, geometries and dimensions of the stones are often limited, the heights, the depths and the angles of the throats are often constraining, the scratches, grits and cracks of stones during the operations exist, even the repairs during a change of stone cause grits on the annexed stones, etc. Also, the majority of these methods require, during the crimping operation, the manual intervention of a crimper. Even if the latter is highly qualified, the risk of loss, scratching, cracking or scratching of the stones is permanent. There is another galvanically invisible crimping method described in EP 2 327 323 A1. This method, which requires the deposition of a first conductive layer on the stones, may, depending on the nature and the thickness of the deposited layer, disturb the expected aesthetic effect and make it mandatory to declare the notion of "coating" on stones , which for an invisible set with precious stones, makes the final object less noble. Also, this method requires a good electrochemical knowledge.

Summary of the invention

The object of the present invention is to overcome all or part of the aforementioned drawbacks proposing an industrial manufacturing process for obtaining a homogeneous assembly of stones, a diversity of shape, an improved accuracy. A fixation of better quality to lower cost and a less restrictive aesthetic quality in terms of gemological regulations.

For this purpose, the invention relates to a decoration piece comprising a plurality of stones and a device for fixing the stones relative to each other. The fastening device comprises a single base of a first material for attaching all the stones to each other by one of their faces, the stone layers are mounted edge to edge relative to each other so that said single base is masked, characterized in that the first material is an at least partially amorphous alloy.

In another advantageous embodiment, the single base makes it possible to attach all the stones to each other by their cylinder head.

In another advantageous embodiment, the single base covers all the yokes of said stones.

In another advantageous embodiment, the single base leaves uncovered part of the yokes of said stones.

In another advantageous embodiment, the single base allows to attach all the stones relative to each other by their crown.

In another advantageous embodiment, the single base covers all the crowns of said stones.

In another advantageous embodiment, the single base leaves uncovered part of the crowns of said stones.

In another advantageous embodiment, the single base allows to attach several stones so that some stones are fixed by their cylinder head and some stones are fixed by their crown.

In another advantageous embodiment, the single base covers all of the heads of some stones and all the crowns of some other stones.

In another advantageous embodiment, the single base leaves uncovered part of the heads of some stones and not covered part of the crowns of some other stones.

In another advantageous embodiment, the fastening device comprises at least one groove made in at least one of the stones at their cylinder head so that the single base, at least partially corresponding to each cylinder head shape at minus one hook for each of said at least one of the stones.

In another advantageous embodiment, the fixing device comprises at least one groove made in at least one of the stones at their crown so that the single base, at least partially corresponding to each crown shape, forms minus one hook for each of said at least one of the stones.

In another advantageous embodiment, said at least one groove forms two grooves in two faces of the yoke.

In another advantageous embodiment, said at least one groove forms two grooves in two faces of the ring.

In another advantageous embodiment, the first material is a totally amorphous metallic material.

In another advantageous embodiment, the first material comprises at least one element which is of the precious type, included in the list comprising gold, platinum, palladium, rhenium, ruthenium, rhodium, lime, silver, iridium or osmium. In another advantageous embodiment, the first material is an amorphous alloy having a glass transition temperature equal to or lower than 450 ° C.

The invention also relates to a timepiece characterized in that it comprises, reported, at least one decoration piece according to the invention.

The invention also relates to an article of jewelry or jewelry characterized in that it comprises, reported, at least one decoration part according to the invention.

The invention also relates to a method of manufacturing a decoration part characterized in that it comprises the following steps: (a) bring several stones; b) solidariser a first face of each stone against a support, the layers of the stones being mounted edge to edge relative to each other to form a paved stones; c) covering with a first material at least a portion of a second face of the stones to form a single base, said first material being a metal alloy capable of becoming amorphous. d) removing the decoration piece thus formed by detaching each of said first faces relative to the support.

In an advantageous embodiment, the method comprises, between step a) and step b), the following step: e) etching at least one groove in the cylinder heads and / or crowns of said stones so that the single base made in step c) fills each of said at least one groove forming a hook attachment.

In another advantageous embodiment, the method comprises, between step c) and step d), the following step: g) forming a frame around said block to circumscribe the deposit of step c) above said cylinder heads and / or said stone crowns.

In another advantageous embodiment, the first face is the table of the stone, the second face being the breech of the stone.

In another advantageous embodiment, the first face is the cylinder head of the stone, the second face being the table of the stone.

In another advantageous embodiment, the first face is the breech of the stone or the table of the stone, the second face being the table of the stone or the breech of the stone.

The invention also relates to a method of manufacturing a decoration part characterized in that it comprises the following steps: 1) provide a support with a housing; 2) at least partially covering the housing with a first material, said first material being a metal alloy capable of becoming amorphous; 3) forming in said first material, at least one hole provided with fixing means; 4) crimping in said at least one hole at least one stone provided with at least one groove so as to cause elastic deformation of the fastening means until an elastic return is exerted when the fastening means are opposite said at least one groove; 5) remove the decoration piece thus formed by separating the first material set with said stones relative to the support.

In another advantageous embodiment, the covering step c) or 2) consists of an application of the first material by hot forming.

In another advantageous embodiment, the covering step c) or 2) consists of an application of the first material by casting or injection.

In another advantageous embodiment, the covering step c) or 2) consists of an application of the first material by densification of powder.

In another advantageous embodiment, said first material is totally amorphous.

In another advantageous embodiment, the first material comprises at least one element which is of the precious type, included in the list comprising gold, platinum, palladium, rhenium, ruthenium, rhodium, lime, silver, iridium or osmium.

In another advantageous embodiment, the first material is in an amorphous alloy having a Tg equal to or less than 450 ° C.

In another advantageous embodiment, the method further comprises a final step of crystallizing the first material.

In another advantageous embodiment, said first material is a metal alloy capable of becoming amorphous at a cooling rate of less than 100,000 ° C / sec.

Brief description of the drawings

Other features and advantages will become apparent from the description which is given below, by way of indication and in no way limiting, with reference to the accompanying drawings, in which: <tb> fig. 1 <SEP> is a perspective representation of a stone fixing step according to the invention; <tb> fig. 2 <SEP> is a sectional representation of the end of the fixing step according to the invention; <tb> fig. 3 <SEP> is an enlarged partial representation of FIG. 2; <tb> fig. 4 <SEP> is a representation of FIG. 3 according to an alternative of the invention; <tb> fig. 5 and 7 <SEP> are representations similar to FIG. 3 of the material deposit according to the invention; <tb> fig. 6 <SEP> is a perspective representation of a second deposition step according to the invention; <tb> fig. 8 <SEP> is a sectional representation of a decoration piece according to the invention; <tb> fig. 9 <SEP> is a sectional representation of a decorative piece according to another alternative of the invention; <tb> fig. <SEP> is a top view of a decorative piece according to the invention; <tb> fig. 11 <SEP> is a top view of a decorative part according to a variant of the invention; <tb> fig. 12 <SEP> is a top view of a decorative piece according to another variant of the invention; <tb> figs. 13 to 16 <SEP> are a representation of a possibility of | process according to the invention; <tb> figs. 17 to 20 <SEP> are a representation of a possibility of the method according to another embodiment of the invention; and <tb> fig. 21 <SEP> is a top view of a decorative piece in which the stones are placed randomly;

Detailed Description of the Preferred Embodiments

As illustrated in FIGS. 8 to 12, the invention relates to generally annotated decoration pieces 1, 3 and 5 that can be reported, in particular, on jewelery and jewelery articles and timepieces (particularly in terms of the dial and the watch). dressing). However, these decorative pieces 1, 3, 5 can not be limited to the above applications. For example, the decorative pieces 1, 3, 5 could also be reported on other objects such as, for example, glasses.

More particularly, the invention relates to a fastening device 7,7 of the invisible type crimped to attach several precious stones 2, semi-precious or synthetic by one of their faces as their cylinder head 4 and / or their crown so that the layers 6 of the stones 2 (also called rondistes) are mounted edge to edge so that the tables 8 of the stones 2 are substantially parallel or coplanar.

Thus, whatever the distribution and / or the shape of the stones 2 used as illustrated for example in FIGS. 10 to 12, the fixing device 7, 7 comprises a single base 9, 9 attaching the stones 2 to each other very precisely. Advantageously according to the invention and contrary to what is usually done to make an invisible set, the material of the base 9, 9 is provided and not removed and then deformed as and when.

It is immediately understood that the single base 9, 9 and allows to perfectly cover the cylinder head 4 2 with a minimum of mechanical stresses transmitted to the stones. Of course, it is conceivable that the stones 2 are attached by their crown that is to say that the single base 9, 9 can perfectly cover the crowns of the stones 2. Similarly, it is possible that the device of fastening 7,7 of the invisible crimped type makes it possible to attach several stones 2 so that certain stones are fixed to the single base 9, 9 by their breech 4 and certain stones are fixed to the single base 9, 9 by their crown. This alternation of fixation by crown or cylinder head can be random. In the rest of the description, it will be described that the fastening device 7, 7 comprises a single base 9, 9 attaching the stones 2 relative to each other by their yoke 4.

Thus, advantageously according to the invention, the base 9, 9 is natively shaped corresponding to the yokes 4 of the stones 2 whatever the dispersions thereof. This is made possible by the use of a manufacturing method according to the invention which will be explained hereinafter and which comprises in particular a material recovery step.

In a first embodiment illustrated in FIG. 8, the fixing device 7 comprises a single base 9 covering all of the yokes 4 of the stones 2. This first embodiment generates a very homogeneous aesthetic of the decoration piece 1, 3, 5.

In a second embodiment illustrated in FIG. 9, the fixing device 7 comprises a single base not covering all the yokes 4 of the stones 2. As illustrated in FIG. 9, the single base 9 thus forms a mesh which follows the leaflet 6 of the stones 2. This second embodiment makes it possible to improve the total internal reflection of the stones 2 used for the decoration part 1, 3, 5. It allows also not having to open the single base mechanically, for example, using a crimping tool, and thus to avoid scratching the stones.

The decoration piece 1, 3, 5 thus formed, even in more or less complex shapes, such as, for example, a wave form 3 illustrated in FIG. 11, a form 5 without particular symmetry illustrated in FIG. 12 or a completely symmetrical form 1 illustrated in FIG. 10, can, therefore, be easily reported on a final product via its single base 9, 9.

According to an alternative of the invention shown in FIGS. 3, 8 and 9, in order to improve the fastening force of the fixing device 7, 7, each of the yokes 4 of the stones 2 comprises at least one groove 10. Because the base 9, 9 corresponds to perfectly to the shape of the cylinder head 4 of the stones 2, it is understood that the base 9, 9 then forms hooks that hold each stone 2 more firmly by its cylinder head 4. Preferably, each stone 2 has two grooves 10 on two opposite sides However, each groove may also form a circumferential groove on each yoke 4 to maximize the mechanical fastening force of the fastener 7, 7. Of course, if the stones 2 are attached to the single base 9, 9 by their ring, said at least one groove 10 is located on said ring.

According to another alternative of the invention, the single base 9, 9 can also directly form the body of the final product which avoids having to bring the decoration piece 1, 3, 5 on another body.

Advantageously, the applied material, called first material, is an amorphous or partially amorphous material. This material is preferably a metal alloy. The partially amorphous term indicates that for a block of material, the percentage of material amount of said block having the amorphous state is sufficient for the block itself to have the characteristics specific to amorphous metals and metal alloys. The amorphous materials have the advantage of being easily shaped above their glass transition temperature Tg. They also have the advantage of having very little dimensional shrinkage during their solidification, because of the absence of crystallization. Similarly, it may be possible to use a precious metal or one of these alloys to give a noble character to said decorative piece. Thus, the precious metal or one of these alloys is included in the list comprising gold, platinum, palladium, rhenium, ruthenium, rhodium, silver, iridium or osmium.

The method of the invention will now be explained in relation to FIGS. 1 to 9 and 13. In a first step, the method consists in providing stones 2 whose laminates 6 allow their mounting edge to edge so as, for example, to obtain the variants of embodiments of FIGS. 10, 11 and 12, that is to say a homogeneous plane of stones 2.

In a second step, the stones 2 are secured one after the other on a support 12. In addition, as best seen in FIG. 2, the face 15 where are reported stones 2 must have a good flatness. Preferably, each stone 2 is secured by a first face on the face 15 of the support 12 by gluing its table 8 by means of an epoxy-resistant glue used at the time of the application of the metal. Of course, other types of joining compatible with the rest of the process steps or even other types of glue are conceivable. In addition, it may be envisaged that the support 12 comprises recesses made so that the table 8 of each stone 2 is inserted therein. The stones 2 are then all placed in a recess which limits the freedom of movement of said stones 2.

Figs. 3 and 4 show a focused magnification on the laminates 6 of the stones 2 according to two alternatives of the invention explained above. It is thus immediately understood that the size accuracy of the 6 or rondist layers of the stones 2 is of great importance. Indeed, according to the invention, the laminates 6 must be mounted edge to edge in order to limit the size of the interstices between the stones 2. These laminates mounted edge to edge form semblants of recesses 4.

Thus, as explained above, in the case where it is not desired to improve the fastening force of the fixing device 7, 7, the stones 2 do not have grooves 10 and are brought against each other. others at their flaps 6 as illustrated in FIGS. 1 and 4. In this case, it is understood that only the chemical interactions between the materials ensure the fixing of the stones.

In the case where it is desired to improve the fastening force of the fastening device 7, T, an intermediate step between the first step and the second securing step is necessary. The intermediate step is intended to engrave at least one groove 10 in at least a portion of the yokes 4 of the stones 2. Thus, during the second step or step of joining, the stones 2 are brought against each other at the level of their leaflets 6 as illustrated in FIGS. 1 and 5. In the embodiment of FIG. 5, it can be seen that the grooves 10 of two stones 2 are vis-à-vis.

In the example illustrated in FIG. 1, it can be seen that the support 12 may also include a jig 14 of dedicated shape to help start the stone plane 2. This template 14 can thus form a square as in FIG. 1 to form a symmetrical decoration piece 1 or a curved body to form a decoration piece 3 in wave. At the end of the second step, as shown in fig. 1, we thus obtain a stone block 2 secured by their table 8 on the face 15 of the support 12. It is of course conceivable that the support 12 and the template 14 form a single piece. However, preferably, the template is composed of several elements forming a frame 16 arranged to circumscribe the amorphous alloy above said cylinder heads 2 as shown in FIGS. 6 and 7.

The method 21 continues with a step intended to form the single base 9, 9 on a second face of the stones 2.

One of the methods for depositing the material constituting the base 9, 9 is to use hot forming.

Figs. 13 to 16 show in a simplified manner the steps to achieve this single base 9.9.

Beforehand, it is necessary to produce an amorphous metal alloy preform. This preform 6a may be made by various techniques such as, for example, injection into a form mold, hot forming above Tg, stamping of the strip, or by machining. Once this preform is made, it is placed above the stones 2 and can be supported on the template 14 or the frame 16 as shown in FIG. 14.

The assembly is then heated to a temperature above the glass transition temperature Tg, thus allowing a reduction in the viscosity of the preform, and then a pressure is exerted. Once these conditions are met, the pressure exerted on the viscous preform allows the amorphous viscous alloy to cover the entire surface of the stones 2 and thus to fill the recesses 6a formed by the laminated edges with edges as shown in FIG. 15. Then, when the recesses 6a are filled, the assembly is cooled in order to maintain the amorphous state of the alloy.

This type of material is well suited to the fact that the sharp decrease in their viscosity when heated above their Tg causes the reduction of the stress to be applied to ensure the filling of the recesses 6a with the amorphous metal alloy. . Therefore, the stones are not likely to break although a pressing operation is performed. On the other hand, this reduction in viscosity allows the amorphous metal alloy to be inserted in each relief of this assembly of stones 2 and thus to take all the contours. Another advantage of this embodiment is that it can be carried out at relatively low temperatures, which makes it possible to avoid the degradation of stones as well as to reduce the risk of stones breaking due to thermal shocks. For this purpose, amorphous metal alloys having glass transition temperatures Tg between 100 and 450 ° C may be preferentially used.

Of course, other types of formatting are possible such as shaping by casting or injection. This method consists of heating a metal preform above its melting point and pouring or injecting the liquid thus obtained onto the stones 2. In this case, it can be envisaged that the frame 16 has a height at least equal to that 2. It then forms a space 17 which will be filled with molten alloy. Once the space 17 has been filled, a cooling step up to a temperature below Tg is carried out in order to avoid the crystallization of the alloy to finally obtain a hollow 6a filled with amorphous or partially amorphous metal alloy. Unlike crystalline metals, amorphous metal alloys allow this embodiment for two main reasons. First, because they have very little solidification shrinkage compared to the crystalline metals, respectively about 0.5% and 4-7%. This ensures a very good cohesion between the stones and the amorphous metal, so a very good behavior. Secondly, the melting temperatures of the amorphous metals are, for a given family of alloys, much lower than those of the crystalline metals. For example, crystalline platinum alloys have a melting point in the range of 1600-1700 ° C while amorphous platinum alloys of PtCuNiP composition have a melting point of about 600 ° C. This therefore makes it possible to simplify considerably the tools used and especially to preserve the integrity of the stones and in particular the diamonds which decompose around 600-800 ° C in the air.

Of course, the shaping by powder densification is possible. The powder densification process consists in introducing a metal powder, having the capacity to become amorphous at cooling rates of less than or equal to 100,000 ° C / sec, in the space 17 formed by the support 2 and the frame 16 and to consolidate it by a supply of energy such as an oven, a laser beam, an ion beam or any other thermal means.

Of course, the amount of first material that is to say amorphous metal alloy can be calculated to form a layer whose thickness is less than that of the stones 2 or less than half of the height of the stones 2 as shown in fig. 7. This layer can follow the shape of stones 2.

In the alternative illustrated in FIG. 9 in which the single base 9 thus forms a mesh which follows the leaflet 6 of the stones 2, a stencil element is used. This stencil element is in the form of a plate comprising orifices in the form of the mesh which follows the laminate 6 of the stones 2. This stencil is placed beforehand on the stones 2 before the hot forming step of casting or sintering takes place. This stencil is preferably made so as to be able to dissolve chemically. Alternatively, in the case of hot forming, the preform is made so as to have the shape of the mesh which follows the laminate 6 of the stones 2. It is then sufficient to place this preform on the stones at the level of the sheet 6 stones 2 and to perform the hot forming operation. One could even consider that the casting operation is done by a machine which will pour the molten metal directly at the level of the mesh which follows the layer 6 stones 2.

According to another alternative of the invention, the single base 9, 9 can also directly form the body of the final product which avoids having to bring the decoration piece 1, 3, 5 on another body.

Subsequently, a decoupling step is performed. This uncoupling step consists in separating the assembly formed by the stones 2 and the single base 9, 9 of the support 12 and the template 14 to obtain the decoration part of FIG. 16. For this, several solutions can be provided.

A first solution is to simply disassemble the support and the template of the assembly formed by the stones 2 and the single base 9, 9. In the case where the stones 2 are glued to the table 15 of the support 12, a chemical agent can be used to dissolve the glue.

A second solution is to dissolve said template and the support 12. Indeed, the template 14 and the support 12 are made of a material that can dissolve.

Another embodiment, visible in FIGS. 17 to 20, can be used. This embodiment consists in taking advantage of the large elastic deformation of amorphous alloys, typically 2%, unlike crystalline alloys which deform plastically from 0.5%.

For this, a first step is to provide a support 120 having a housing 121.

In the housing 121 of the support 120, a deposit 22 of the first material which is an amorphous or partially amorphous metallic material is deposited as visible in FIG. 18. This deposition 22 of amorphous metallic material can be achieved by the methods of hot forming or casting or injection or powder densification previously described.

Then, the next step is to machine this deposit 22 to make holes 23 in which the stones 2 will be crimped as shown in FIG. 19. This figure declines a version with stones set by their breech but one could very well imagine stones set by their crown or a random device with stones set by their crown and their cylinder head. This machining can be done in several ways. On the one hand it can be done by removal of material by laser or drill.

This machining can also be performed using the properties of the amorphous metal. Indeed, the latter sees its viscosity decreased when heated to a temperature between its glass transition temperature Tg and its crystallization temperature Tx. A tool having the negative geometry of the hole is applied, with a certain force, on the amorphous metal filling the hollow. It is thus possible to avoid the machining steps that can be difficult depending on the amorphous alloys used.

Advantageously according to this embodiment, a fastening means 24 is arranged at the side 23a of each hole 23. This fastening means 24 consists of at least one protrusion made of material with the material of the deposit 22.

The crimping method then consists in pressing the stone 2 in the hole. By elastic deformation, the fixing means are deformed allowing the insertion of said stone. When the protrusion is opposite the groove 10 of the stone 2, an elastic return is exerted so that the protrusion fits into the groove 10 and allows to permanently maintain it as visible in FIG. 20.

Preferably, the dimensions of the housing 121 are calculated so that the height of the housing is at least equal to that of the stones 2 and that the width and / or the length are at least equal to those of the set of stones 2 bet side by side.

It will be understood that various modifications and / or improvements and / or combinations obvious to those skilled in the art can be made to the various embodiments of the invention described above without departing from the scope of the invention defined by the appended claims.

Claims (32)

1. Decoration piece (1, 3, 5) comprising a plurality of stones (2) and a fixing device (7, 7) of the stones (2) relative to each other the fixing device (7, 7) comprises a single base (9, 9) of a first material for attaching all the stones (2) to each other by one of their faces, the layers (6) of stones (2) are mounted edge to edge relative to each other so that said single base is masked, characterized in that the first material is an at least partially amorphous alloy. 2. Part (1, 3, 5) according to the preceding claim, characterized in that the single base (9) for attaching all stones (2) relative to each other by their yoke (4). 3. Part (1, 3, 5) according to claim 1, characterized in that the single base (9) for attaching all stones (2) relative to each other by their crown. 4. Part (1, 3, 5) according to claim 1, characterized in that the single base (9) can attach several stones (2) so that certain stones (2) are fixed by their cylinder head and that some piers (2) are fixed by their crown. | 5. Part (1, 3, 5) according to claim 2, characterized in that the single base (9) covers all of the yokes (4) of said stones. 6. Part (1, 3, 5) according to claim 2, characterized in that the single base (9) leaves uncovered part of the yokes (4) of said stones. 7. Part (1, 3, 5) according to claim 3, characterized in that the single base (9) covers all crowns of said stones. 8. Part (1, 3, 5) according to claim 3, characterized in that the single base (9) leaves uncovered part of the crowns (4) of said stones. 9. Part (1, 3, 5) according to claim 2, characterized in that the fixing device (7, 7) comprises at least one groove (10) made in at least one of the stones (2) at the level of their yoke (4) so that the single base (9, 9), of shape at least partially corresponding to each yoke (4), forms at least one hook for each of said at least one of the stones (2). 10. Part (1, 3, 5) according to claim 3, characterized in that the fixing device (7, 7) comprises at least one groove (10) made in at least one of the stones (2) at the level of their crown so that the single base (9, 9), shaped at least partially corresponding to each ring, forms at least one hook for each of said at least one of the stones (2). 11. Part (1, 3, 5) according to claim 8, characterized in that said at least one groove (10) forms two grooves in two faces of the yoke (4). 12. Part (1, 3, 5) according to claim 9, characterized in that said at least one groove (10) forms two grooves in two faces of the ring. 13. Part (1, 3, 5) according to one of the preceding claims, characterized in that the first material is a totally amorphous metal material. 14. Part (1, 3, 5) according to one of the preceding claims, characterized in that the first material comprises at least one element which is of the precious type, included in the list comprising gold, platinum, palladium rhenium, ruthenium, rhodium, silver, iridium or osmium. 15. Part (1, 3, 5) according to one of claims 1 to 14, characterized in that the first material is an amorphous alloy having a glass transition temperature less than or equal to 450 "C. 16. Timepiece characterized in that it comprises, reported, at least one decoration piece (1, 3, 5) according to one of the preceding claims. 17. Article jewelery or jewelry characterized in that it comprises, reported, at least one decoration piece (1, 3, 5) according to one of claims 1 to 15. 18. A method of manufacturing a decorative piece (1, 3, 5) characterized in that it comprises the following steps: a) bring several stones (2); b) solidariser a first face of each stone (2) against a support (12), the laminates (6) of the stones (2) being mounted edge to edge relative to each other to form a paved stones (2) ; c) depositing a layer of a first material on at least a portion of a second face of the stone to form a single base (9, 9), said first material being a metal alloy capable of becoming at least partially amorphous ; d) removing the decoration piece (1, 3, 5) thus formed by detaching each of said second faces relative to the support (12). 19. A method of manufacturing a decorative piece (1, 3, 5) characterized in that it comprises the following steps: 1) provide a support (120) provided with a housing (122); 2) depositing a layer of a first material in the housing, said first material being a metal alloy capable of becoming at least partially amorphous; 3) forming in said first material, at least one hole (23) provided with fixing means (24); 4) crimping in said at least one hole (23) at least one stone (2) provided with at least one groove (10) so as to cause elastic deformation of the fastening means (24) until a resilient return is exerted when the fastening means (24) are opposite said at least one groove (10); 5) removing the decoration piece (1, 3, 5) thus formed by separating each of said crimped stones relative to the support (120). 20. Method (21) according to claim 18, characterized in that it comprises, between step a) and step b), the following step: e) etching at least one groove (10) in yokes (4) of said stones so that the single base (9, 9) deposited in step c) fills each of said at least one groove (10) forming a fixing hook. 21. Method according to one of claims 18 or 19, characterized in that it comprises, between step c) and step d), the following step: g) forming a frame (16) around said block to circumscribe the deposit of step c) above said stone yokes (2). 22. The method of claim 18, characterized in that the first face is the table of the crown, the second face being the yoke (4). 23. The method of claim 18, characterized in that the first face is the yoke (4), the second face being the table of the crown. 24. The method of claim 18, characterized in that the single base (9) allows to attach several stones (2) so that certain stones (2) are fixed by their cylinder head and that certain stones (2) are fixed by their crown. 25. Method according to one of claims 18 or 19, characterized in that the covering step c) or 2) consists of an application of the first material by hot forming. 26. Method according to one of claims 18 or 19, characterized in that the covering step c) or 2) consists of an application of the first material by casting or injection. 27. Method according to one of claims 18 or 19, characterized in that the covering step c) or 2) consists of an application of the first material by densification of powder. 28. Method according to one of claims 18 to 27, characterized in that said first material is totally amorphous. 29. Method according to one of claims 18 to 28, characterized in that the first material comprises at least one element which is of the precious type, included in the list comprising gold, platinum, palladium, rhenium, ruthenium, rhodium, silver, iridium or osmium. 30. Crimping method according to one of claims 18 to 29, characterized in that it further comprises a final step of crystallizing the first material. 31. Crimping method according to one of claims 18 to 30, characterized in that the first material is an amorphous alloy having a glass transition temperature of less than or equal to 450 ° C. 32. Crimping method according to one of claims 18 to 31, characterized in that said first material is a metal alloy capable of becoming amorphous at a cooling rate of less than 100,000 ° C / sec.