CN102525050A - Moissanite gem with bright carving surface and cutting and grinding processing methods thereof - Google Patents
Moissanite gem with bright carving surface and cutting and grinding processing methods thereof Download PDFInfo
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Abstract
The invention relates to a moissanite gem with bright carving surface and cutting and grinding processing methods of the moissanite gem. For the moissanite gem, the crown angle is 34-35 degrees, the pavilion angle is 41-42 degrees, the table width is 49%-51%, the crown height is 17%-18%, the pavilion depth is 43%-44%, and the total depth is 62%-65%. The methods comprise cutting and grinding angle and proportions of various common bright cutting types of moissanite gems. According to specific properties of crystal axis orientation, refractive index, color, color, transparency and the like of the moissanite gems, after the cutting and grinding angles and proportions are adopted, comprehensive and optimized gloss, flicking and color of the curved-surface moissanite gems are displayed.
Description
Technical field
The present invention relates to a kind of mill method of cutting of moissanite jewel, relate in particular to the bright cut moissanite jewel of facet and cut the mill processing method.
Background of invention
Because the rareness property of natural gemstone; Craftsman are for the volume of big as far as possible reservation jewel; Often jewel is cut into convexity or various irregular shape substantially, even glossing is fabulous like this, effects such as The Luster of Gems, flicker and fiery coloured silk can not obtain best representing.Since at the beginning of last century, the change of Along with people's consumption view, the aesthetic property of jewel more and more comes into one's own.Through following the optical laws of crystal, set the angle and the ratio of cutting mill, can make the brightness of jewel and fiery coloured silk reach best fully.1919, Marcel Tolkowsky has delivered famous " Diamond Design " book, based on the refractive index of diamond, and has taken all factors into consideration the brightness effect color with fire, and what calculated circular bright type diamond cuts angle lap degree and ratio.But the computational process of Tolkowsky has been missed the light of some part, and its result has error.
The moissanite jewel claims also that mulberry bores, and formal name used at school carborundum is a kind of synthetic gem, it have than the also high refractive index of diamond (the diamond refractive index is about 2.42) be only second to the hardness of diamond, so be the imitative brill material of the best at present.The colored moissanite monocrystalline that the growing method that provides of Chinese patent file CN 101037806A and Chinese patent CN 128770C can obtain; Color gamut comprises green, yellow, blueness, black and closely colourless; And the moissanite monocrystalline color homogeneous that on the basis of this technology, obtains, the transparency is good.CN102198701A provides a kind of processing method of facet moissanite jewel finished product.Comprise steps such as cutting, preparatory type, cast, grinding, polishing; With the diamond cut line moissanite monocrystal rod is cut into little cuboid crude green body; Be not more than 5 ° face as table top with the c face of moissanite cuboid crude green body or with c face drift angle, thin outer thick abrasive disk grinds with the abrasive disk inner ring with the grinding of abrasive disk outer ring earlier during grinding again in adopting; Polishing divides rough polishing and finishing polish, and the process conditions of strict each step of control.The applicant quotes this patent application prospectus full content technology as a setting.
But all the time, the mill of cutting of moissanite jewel all is to carry out according to the mill ratio of cutting of diamond, and the moissanite jewel finished product that obtains often is inferior to diamond on brightness and fiery coloured silk.Moissanite (SiC) is silicon atom and carbon atom combine formation in 1: 1 ratio a kind of covalent compound.Moissanite is an aeolotropic crystal; Belong to a positive photosensitiveness crystal, its optical axis is parallel to the crystal axis (being the C axle) of crystal, and its birefringence is 0.043; So the refractive index of the different crystal faces of this material is different, this point is cut the mill ratio for the best of accurately calculating the moissanite jewel and has been caused difficulty.On the other hand, moissanite has multiple crystal habit, and it is many types of that academia is referred to as moissanite, and different crystal habits also has different refractive indexes.Many types of 6H-SiC, 4H-SiC and the 15R-SiC of comprising of modal moissanite, its C face refractive index also has nothing in common with each other.Can know that according to He Xuemei " growth of a synthesizing silicon carbide and discriminating " literary composition (" jewelry science and technology " the 11st the 2nd phase of volume in 1999) refractive index of moissanite jewel is 2.65～2.69.On this basis, what the present invention had designed moissanite gemstone facet cut cuts angle lap degree and processing ratio, mainly comprise Guan Jiao, booth angle, the wide ratio of platform, crown height than, booth deeply than etc.
Summary of the invention
To the deficiency of prior art, the present invention provides the bright cut moissanite jewel of a kind of facet and cuts the mill processing method.
The term explanation:
Moissanite C face is meant the face perpendicular to the C axle.
The cut of jewel is meant the moulding of jewel, is the style that the former stone of jewel is appeared after pondering, also claims jewel cut or style.
Facet cut (brilliant cut) jewel that becomes clear mainly is divided into bizet, girdle and booth portion three parts.Bizet is the terrace with edge shape more than girdle, be the face of mainly viewing and admiring, and booth portion is pyramid-shaped below girdle, can be used for inlaying.Table top is meant the plane that bizet is maximum, is also referred to as desktop, end face.As shown in Figure 1.
The facet cut jewel that becomes clear comprises the standard circular multiple concrete stone cuts such as cut, single bright cut, old single bright cut, two bright cut, Switzerland's cut, classic European cut that become clear.
The bright type jewel of facet cut angle lap degree and ratio: the waistline diameter of setting the girdle place is a unit 1, then mainly comprises with lower angle and ratio:
Guan Jiao: the horizontal plane angle of bizet interarea and waistline is Guan Jiao, is the reference angle of each face of bizet;
The booth angle: the angle of booth portion interarea and waistline horizontal plane is the booth angle, is the reference angle of each face of booth portion;
The wide ratio of platform: mesa diameter or regular polygon diagonal are the wide ratio of platform with the ratio of waistline diameter;
The crown height ratio: the bizet height is the crown height ratio with the ratio of waistline diameter;
Booth deeply than the ratio of: the height of booth portion and waistline diameter be booth deeply than.
Complete dark ratio: the ratio of total height and waistline diameter be dark entirely than.
The bright cut of modal facet is the bright type of standard circular.The bright type stone cuts of standard circular is as shown in Figure 2, and bizet is made up of table top 11, hat interarea 13, star facet 12 and last central plane 14, and booth portion is made up of booth interarea 16 and following waist facet 16, also has bottom surface 17 sometimes.For the bright cut jewel of standard circular, the basis of removing the bright cut of above-mentioned facet cut angle lap degree and ratio (Guan Jiao, booth angle, the wide ratio of platform, crown height than, booth deeply than, complete deeply than), upward central plane angle, star facet angle, following central plane angle in addition:
Last central plane angle: the angle of central plane and waistline horizontal plane on the bizet;
Star facet angle: the angle of bizet star facet and waistline horizontal plane;
Following central plane angle: the angle of booth subordinate central plane and waistline horizontal plane.
According to traditional processing technology, bizet star facet is littler 5 ° than Guan Jiao with the angle of waistline horizontal plane, and the ratio Guan Jiao of central plane angle is big 1～2 ° on the bizet.Booth subordinate central plane angle bigger 1～2 ° than booth angle.
Technical scheme of the present invention is following:
A kind of facet cut moissanite jewel that becomes clear comprises bizet, girdle and booth portion three parts; Bizet is the terrace with edge shape more than girdle, be the face of mainly viewing and admiring, and booth portion is pyramid-shaped below girdle, be used to inlay; The maximum plane of bizet is a table top; Guan Jiao is 34 °～35 °, and the booth angle is 41 °～42 °, and the wide ratio of platform is 49%～51%, and the crown height ratio is 17%～18%, and booth is dark in being 43%～44%, and is complete dark in being 62%～65%.
Preferred according to the present invention, said moissanite is 6H-SiC, and the Guan Jiao of this 6H moissanite jewel is 34.72 °, and the booth angle is 41.13 °, and the wide ratio of platform is 49.78%, and the crown height ratio is 17.30%, and booth is dark in being 43.60%, and is complete dark in being 63.90%～64.90%.
The bright cut of said facet is the bright cut (round brilliant cut) of standard circular, single bright cut (single cut), old single bright cut (old single cut), two bright cut (double cut; Also claim Mazarin cut, Mazarin cut), Switzerland's cut (Swiss cut) or classic European cut (ole European cut).
According to the present invention, preferred especially, for the bright cut (like Fig. 2) of the standard circular of moissanite jewel, it is characterized in that; Guan Jiao is 34 °～35 °, and the booth angle is 41 °～42 °, and the wide ratio of platform is 49%～51%; The crown height ratio is 17%～18%, and booth is dark in being 43%～44%, and is complete dark in being 62%～65%; Star facet angle is 29 °～30 °, and last central plane angle is 35 °～37 °, and following central plane angle is 42 °～44 °.As shown in the table:
The bright cut moissanite jewel of a kind of facet cut the mill processing method, in cutting mill with lower angle and ratio:
As table top, Guan Jiao is 34 °～35 ° with the C face of moissanite, and the booth angle is 41 °～42 °, and the wide ratio of platform is 49%～51%, and the crown height ratio is 17%～18%, and booth is dark in being 43%～44%, and is complete dark in being 62%～65%.
According to the inventive method, preferred, said moissanite is 6H-SiC, and the Guan Jiao of this 6H moissanite jewel is 34.72 °, and the booth angle is 41.13 °, and the wide ratio of platform is 49.78%, and the crown height ratio is 17.30%, and booth is dark in being 43.60%, and is complete dark in being 63.90%～64.90%.
Method of the present invention is applicable to bright cut of all facets of moissanite jewel and distortion thereof.Comprise the standard circular multiple concrete stone cuts such as cut, single bright cut, old single bright cut, two bright cut, Switzerland's cut, classic European cut that become clear.
Above-described according to the present invention, the processing method of the bright cut moissanite jewel of a kind of facet as table top, is cut mill in described angle, ratio and cut with the C face of moissanite.
One of preferred, the standard circular of the moissanite jewel type that become clear is characterized in that, as table top, table top is an octagon with the C face of moissanite, and bizet has central planes, eight star facets on eight the hat interareas, 16; There are eight booth interareas, 16 following central planes in booth portion, and Guan Jiao is 34 °～35 °, and the booth angle is 41 °～42 °; The wide ratio of platform is 49%～51%, and the crown height ratio is 17%～18%, and booth is deeply than being 43%～44%; Complete deeply than being 62%～65%; Star facet angle is 29 °～30 °, and last central plane angle is 35 °～37 °, and following central plane angle is 42 °～44 °.
Preferred two, the standard circular of the 6H moissanite jewel cut that become clear is characterized in that, as table top, table top is an octagon with the C face of 6H moissanite, and bizet has central planes, eight star facets on eight the hat interareas, 16; There are eight booth interareas, 16 following central planes in booth portion, and Guan Jiao is 34.72 °, and the booth angle is 41.13 °, and the wide ratio of platform is 49.78%; The crown height ratio is 17.30%, and booth is dark in being 43.60%, and is complete dark in being 64.50%; Star facet angle is 29.5 °, and last central plane angle is 36 °, and following central plane angle is 43 °.
Preferred three, the list of the 6H moissanite cut that becomes clear is characterized in that, with the C face of moissanite as table top; Table top is an octagon, and bizet has eight hat interareas, and booth portion has eight booth interareas; Guan Jiao is 34.72 °, and the booth angle is 41.13 °, and the wide ratio of platform is 49.78%; The crown height ratio is 17.30%, and booth is dark in being 43.60%, and is complete dark in being 64.50%.
Preferred four, 6H Switzerland cut moissanite jewel, like Fig. 4, shown in 5, as table top, table top is an octagon with the C face of moissanite; Bizet has eight hat interareas, goes up central plane for eight, and there are eight booth interareas in booth portion, eight following central planes; Guan Jiao is 34.72 °, and the booth angle is 41.13 °, and the wide ratio of platform is 49.78%, and the crown height ratio is 17.30%; Than being 43.60%, complete last central plane angle is 36 ° to booth deeply than being 64.50% deeply, and following central plane angle is 43 °.
Excellent results of the present invention:
Moissanite jewel provided by the invention cut angle lap degree and ratio, comprise the bright cut of multiple common facet such as circular bright cut the moissanite jewel cut angle lap degree and ratio.The present invention has taken into full account physical propertys such as the crystallographic axis orientation, refractive index, color, transparency of moissanite jewel itself, obtain a cover complete cut angle lap degree and ratio.After adopting this cover to cut angle lap degree and ratio, facet moissanite The Luster of Gems (lightness), flicker and fiery coloured silk have obtained comprehensive optimized representing.
Description of drawings
Fig. 1 is the bright cut moissanite jewel profile of facet, and setting the waistline diameter among the figure is unit " 1 ", mainly cuts angle lap degree and ratio: 1, Guan Jiao, 2, the booth angle; 3, the wide ratio of platform, 4, the crown height ratio, 5, booth deeply than, 6, total height; 7, complete deeply than, 8, bizet, 9, waistline, 10, booth portion.
Fig. 2 is that embodiment 1 chisels shape moissanite jewel schematic perspective view with embodiment 2 standards are bright, wherein, and 8, bizet, 9, waistline; 10, booth portion, 11, table top, 12, the star facet, 13, the hat interarea; 14, go up central plane, 15, the booth interarea, 16, waist facet down, 17, the bottom surface.
Fig. 3 is the three-dimensional view of the single bright cut moissanite jewels of embodiment 3, wherein, and 19, table top, 20, the hat interarea, 21, the booth interarea, 22, waistline.
Fig. 4 is the schematic perspective view of embodiment 4 Switzerland's cut moissanite jewels, and Fig. 5 is the vertical view (left figure) and the upward view (right figure) of embodiment 3 Switzerland's cut moissanite jewels.Wherein, 23, table top, 24, go up central plane, 25, the hat interarea, 26, the booth interarea, 27, central plane down, 28, waistline.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified, but be not limited thereto.
The standard circular of embodiment 1, the moissanite jewel cut that becomes clear, as shown in Figure 2, as table top, table top 11 is an octagon with the C face of moissanite, bizet has eight 13,16 of hat interareas to go up central plane 14, eight star facets 12; There are 17,16 following central planes 16 of eight booth interareas in booth portion, in cut mill processing with lower angle and ratio:
Guan Jiao is 34 °～35 °, and the booth angle is 41 °～42 °, and the wide ratio of platform is 49%～51%; The crown height ratio is 17%～18%; Than being 43%～44%, complete dark in being 62%～65%, star facet angle is 29 °～30 ° to booth deeply; Last central plane angle is 35 °～37 °, and following central plane angle is 42 °～44 °.Of following table
The standard circular of embodiment 2, the 6H moissanite jewel cut that becomes clear, as shown in Figure 2, as table top, table top 11 is an octagon with the C face of moissanite, bizet has eight 13,16 of hat interareas to go up central plane 14, eight star facets 12; There are 17,16 following central planes 16 of eight booth interareas in booth portion, in cut mill processing with lower angle and ratio:
Hat angle 1 is 34.72 °, and booth angle 2 is 41.13 °, and the wide ratio 3 of platform is 49.78%, and crown height is 17.30% than 4, and booth is 43.60% than 5 deeply, and complete is 64.50% than 7 deeply, and star facet 12 angles are 29.5 °, and last central plane 14 angles are 36 °, and following central plane 16 angles are 43 °.Of following table:
Guan Jiao: the horizontal plane angle of hat interarea 13 and waistline; Booth angle: the angle of booth interarea 17 and waistline horizontal plane; The wide ratio of platform: table top 11 hexagon catercorner lengths and girdle diameter ratio; Crown height ratio: the ratio of bizet height and waistline diameter; Booth is deeply than: the height of the booth portion ratio with the waistline diameter; Complete deeply than the ratio of total height and waistline diameter; Last central plane angle: the angle of central plane and waistline horizontal plane on the bizet; Star facet angle: the angle of bizet star facet and waistline horizontal plane; Following central plane angle: the angle of booth subordinate central plane and waistline horizontal plane.The no bottom surface of this example.
Single circular bright type cut of embodiment 3,6H moissanite, as shown in Figure 3, as table top, table top 19 be an octagon with the C face of moissanite, and bizet has eight hat interareas 20, and booth portion has eight booth interareas 21, processes in cutting with lower angle and ratio to grind:
| Guan Jiao | The booth angle | The wide ratio of platform | The crown height ratio | Booth deeply than | Complete deeply than |
| 34.72° | ?41.13° | 49.78％ | 17.30％ | 43.6％ | 64.5％ |
Guan Jiao: the angle of hat interarea 20 and waistline 22 place horizontal planes; Booth angle: the angle of booth interarea 21 and waistline 22 place horizontal planes; The wide ratio of platform: table top 19 regular hexagon diagonal and waistline diameter ratio; Crown height ratio: bizet height and waistline diameter ratio; Booth is deeply than: booth portion height and waistline diameter ratio; Complete deeply than: table top is to the total height and the waistline diameter ratio of vertex (vertices).
| Guan Jiao | The booth angle | The wide ratio of platform | The crown height ratio | Booth deeply than | Complete deeply than | Last central plane angle | Following central plane angle |
| 34.72° | 41.13° | 49.78％ | 17.30％ | 43.6％ | 64.5％ | 36° | 43° |
Guan Jiao: the angle of hat interarea and waistline 28 place horizontal planes; Booth angle: the angle of booth interarea 26 and waistline 28 place horizontal planes; The wide ratio of platform: table top 23 regular hexagon diagonal and waistline diameter ratio; Crown height ratio: bizet height and waistline diameter ratio; Booth is deeply than: booth portion height and waistline diameter ratio; Complete dark ratio: table top 23 arrives the total height and waistline 28 diameter ratios of vertex (vertices).Last central plane angle: the angle of central plane 24 and waistline horizontal plane on the bizet; Following central plane angle: the angle of booth subordinate central plane 27 and waistline horizontal plane.
Claims (8)
1. the bright cut moissanite jewel of facet comprises bizet, girdle and booth portion three parts; Bizet is the terrace with edge shape more than girdle, be the face of mainly viewing and admiring, and booth portion is pyramid-shaped below girdle, be used to inlay; The maximum plane of bizet is a table top; It is characterized in that Guan Jiao is 34 °～35 °, the booth angle is 41 °～42 °, and the wide ratio of platform is 49%～51%, and the crown height ratio is 17%～18%, and booth is dark in being 43%～44%, and is complete dark in being 62%～65%.
2. the facet as claimed in claim 1 cut moissanite jewel that becomes clear; It is characterized in that said moissanite is 6H-SiC, the Guan Jiao of this 6H moissanite jewel is 34.72 °, and the booth angle is 41.13 °; The wide ratio of platform is 49.78%; The crown height ratio is 17.30%, and booth is dark in being 43.60%, and is complete dark in being 63.90～64.90%.
3. according to claim 1 or claim 2 the bright cut moissanite jewel of facet is characterized in that the bright cut of said facet is the bright cut of standard circular, single bright cut, old single bright cut, two bright cut, Switzerland's cut or classic European cut.
4. like claim 1 or the bright cut moissanite jewel of 3 described facets, it is characterized in that Guan Jiao is 34 °～35 ° for the bright cut of the standard circular of moissanite jewel; The booth angle is 41 °～42 °, and the wide ratio of platform is 49%～51%, and the crown height ratio is 17%～18%; Than being 43%～44%, complete dark in being 62%～65%, star facet angle is 29 °～30 ° to booth deeply; Last central plane angle is 35 °～37 °, and following central plane angle is 42 °～44 °.
5. like the processing method of the bright cut moissanite jewel of each described facet of claim 1～4, as table top, cut mill in described angle, ratio and cut with the C face of moissanite.
6. the processing method of the bright cut moissanite jewel of facet as claimed in claim 5; It is characterized in that said moissanite is 6H-SiC; This 6H moissanite jewel is the bright cut of standard circular; As table top, table top is an octagon with the C face of moissanite, and bizet has eight hat interareas, 16 to go up central planes, eight star facets; There are eight booth interareas, 16 following central planes in booth portion, and Guan Jiao is 34.72 °, and the booth angle is 41.13 °, and the wide ratio of platform is 49.78%; The crown height ratio is 17.30%, and booth is dark in being 43.60%, and is complete dark in being 64.50%; Star facet angle is 29.5 °, and last central plane angle is 36 °, and following central plane angle is 43 °.
7. the processing method of the bright cut moissanite jewel of facet as claimed in claim 5 is characterized in that said moissanite is 6H-SiC, and this 6H moissanite jewel be single cut that becomes clear, with the C face of moissanite as table top; Table top is an octagon, and bizet has eight hat interareas, and booth portion has eight booth interareas; Guan Jiao is 34.72 °, and the booth angle is 41.13 °, and the wide ratio of platform is 49.78%; The crown height ratio is 17.30%, and booth is dark in being 43.60%, and is complete dark in being 64.50%.
8. the processing method of the bright cut moissanite jewel of facet as claimed in claim 5 is characterized in that said moissanite is 6H-SiC, and this 6H moissanite jewel is Switzerland's cut, with the C face of moissanite as table top; Table top is a regular hexagon, and bizet has eight hat interareas, goes up central plane for eight, and there are eight booth interareas in booth portion; Eight following central planes, Guan Jiao are 34.72 °, and the booth angle is 41.13 °; The wide ratio of platform is 49.78%, and the crown height ratio is 17.30%, and booth is deeply than being 43.60%; Complete last central plane angle is 36 ° deeply than being 64.50%, and following central plane angle is 43 °.
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| CN105455329A (en) * | 2014-09-12 | 2016-04-06 | 上海黛恩妠珠宝有限公司 | Moissanite round diamond |
| CN105455331A (en) * | 2014-09-12 | 2016-04-06 | 上海黛恩妠珠宝有限公司 | Moissanite round diamond processing method |
| CN107440267A (en) * | 2017-09-30 | 2017-12-08 | 深圳市瑰蓝珍宝珠宝有限公司 | A kind of seven side type jewels |
| CN108523329A (en) * | 2018-02-07 | 2018-09-14 | 上海黛恩妠珠宝有限公司 | A kind of moissanite round bur |
| CN109198821A (en) * | 2018-09-30 | 2019-01-15 | 苏州子冈珠宝有限公司 | A kind of diamond structures |
| CN111212581A (en) * | 2017-10-09 | 2020-05-29 | D.施华洛世奇两合公司 | Cutting of gemstones |
| CN112312790A (en) * | 2018-05-18 | 2021-02-02 | 艾伯特加德有限公司 | Gem and cutting method thereof |
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| CN111212581A (en) * | 2017-10-09 | 2020-05-29 | D.施华洛世奇两合公司 | Cutting of gemstones |
| US11452346B2 (en) | 2017-10-09 | 2022-09-27 | D. Swarovski Kg | Cut for gemstone |
| CN108523329A (en) * | 2018-02-07 | 2018-09-14 | 上海黛恩妠珠宝有限公司 | A kind of moissanite round bur |
| CN112312790A (en) * | 2018-05-18 | 2021-02-02 | 艾伯特加德有限公司 | Gem and cutting method thereof |
| US11559121B2 (en) | 2018-05-18 | 2023-01-24 | Albert Gad Ltd. | Gemstone and methods of cutting the same |
| CN109198821A (en) * | 2018-09-30 | 2019-01-15 | 苏州子冈珠宝有限公司 | A kind of diamond structures |
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