CN103932462B - There is the square diamond of princess and the method for the improvement of eight heart eight arrow patterns - Google Patents
There is the square diamond of princess and the method for the improvement of eight heart eight arrow patterns Download PDFInfo
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- CN103932462B CN103932462B CN201310071335.8A CN201310071335A CN103932462B CN 103932462 B CN103932462 B CN 103932462B CN 201310071335 A CN201310071335 A CN 201310071335A CN 103932462 B CN103932462 B CN 103932462B
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Abstract
The square diamond of princess of a kind of improvement with eight heart eight arrow patterns and method.The square diamond of princess of this improvement includes: 1 table top, 4 main facets of bizet, little of 8 bizet waists, 8 bizet star facets, 4 bizet pair facets, little of 8 bizet pair waists, 8 main facets in booth portion, 4 booth portion pair facets, little and 1 waist of 16 booth portion waists, wherein the main facet of each bizet has a pair bizet star facet being symmetrically disposed in its side adjacent with table top, with little of a pair bizet waist being symmetrically disposed in its opposite side, the side of the adjacent flats of every pair of bizet star facet is being substantially equal to the intersection of the half of the relatively long distance of the main facet of bizet flatly measured, and all bizet star facets and the bizet waist little mask adjacent with the main facet of each bizet have identical polishing angle, wherein maximum allowance is 0.30.
Description
Technical field
The present invention is the patent application serial numbers that on November 23rd, 2005 is submitted to is 11/286, the improvement of the square diamond of princess of the change of 218, for forming the square diamond of princess with eight heart eight arrow patterns, its feature is substantially equivalent to the desirably circular eight heart eight arrow patterns cut in diamond.
Background technology
Suitably U.S.A of the diamond gem of cutting derives from the reflection of the facet of diamond and the mode of refraction light.Diamond can be cut into many different geometrical patterns, as known in the art such as circle, egg type, pyriform, olive shape, square, the Emerald of princess etc..The circle of standard is because its fire is color and optics optical processing characteristic but most popular diamond cut.Although weight and cleanliness are independently of the factor that diamond is worth that will affect of cutting geometry, but the factor that most important impact is worth is its optical characteristics and color.
Gemmologist can use technical jargon, and such as fire is color, glisten and symmetry is to refer to the optical characteristics of diamond cut.Fire is color corresponding with the intensity of retroreflection light with flash of light, and it is relevant with the degree of registration of the cutting parameter of diamond and facet with symmetry to glisten.In order to provide shining high as far as possible when utilizing the color analyser of fire to analyze with the minimum color loss of fire, then diamond must have as close possible to perfect cutting parameter.Mostly state classification research chief minister at present with the color analyser of fire, be used for analyzing the color loss of fire of desirably circular cutting diamond, for instance American Gem academy (GIA) and American Gem association (AGS).Except other academys, the two academy is special to most valuable diamond grading and provide available best cut grade.
The most valuable circle cutting diamond with best cut grade has " the eight real heart eight arrow patterns " well known by persons skilled in the art.Circular cutting diamond always display " eight heart eight arrow patterns ", but only when pattern cuts symmetrically, just can show " the eight real heart eight arrow patterns " well known by persons skilled in the art.Up to now, " the eight real heart eight arrow patterns " can only cut in diamond in circle and realize.It is that symmetric condition necessary to " real " requires cutting diamond once polish for eight heart eight arrow patterns, facet it is accomplished by being made the microscope of domestic 100 times according to strict requirement inspection by experienced Gem Studies, so that will ideally be alignd and intersect each other in a bit.Before making the present invention, diamond can not cut into princess's square pattern and provide eight heart eight arrows real specific to desirable round diamond.
Summary of the invention
nullThe square diamond of princess of the present invention has the diamond-shaped of symmetry，It has eight heart eight arrow patterns specific to the eight real heart eight arrow patterns in circular cutting diamond，And including: 1 table top、4 main facets of bizet、8 little of bizet waists (halves)、8 bizet star facets、4 bizet pair facets、Little of 8 bizet pair waists、8 main facets in booth portion、4 booth portion pair facets、Little and 1 waist of 16 booth portion waists，Wherein the main facet of each bizet has a pair bizet star facet being symmetrically disposed in its side adjacent with table top side、With little of a pair bizet waist being symmetrically disposed in its opposite side，Every pair of bizet star facet intersects each other in the position of the half of the distance being equal to the contiguous main facet of bizet，And all bizet star facets and the bizet waist little mask adjacent with the main facet of each bizet have identical polishing angle，Wherein maximum allowance is 0.30.The square diamond of princess of the improvement according to the present invention does not include the booth portion pair corner cut facet a in application before this2.Pointing out in application before this, both not needed the pair corner cut facet of booth portion to obtain eight heart eight arrow patterns, waist thickness rate is also necessarily identical on whole diamond.
The invention still further relates to a kind of method that diamond is polished to princess's pattern, described princess's square pattern is by consisting of: 1 table top, 4 main facets of bizet, little of 8 bizet waists, 8 bizet star facets, 4 bizet pair facets, little of 8 bizet pair waists, 8 main facets in booth portion, little and one waist of 16 booth portion waists, wherein, princess's cut has eight heart eight arrow patterns specific to the eight real heart eight arrow patterns in circular cutting diamond, said method comprising the steps of: bizet pair facet is polished to the length of little less than bizet waist of length, bizet pair facet is polished to and becomes 45 degree of angles relative to little adjacent of bizet waist, make when measuring from the table top side of diamond, the little mask of bizet waist has about the same size；And the main facet of the main facet of bizet and booth portion has following cutting angle:
The main facet angle in booth portion is 40.60 °-41 °；
The main facet angle of bizet is 34.0 °-35.2 °；
Booth portion pair facet angle is 64 °-67 °；And
Bizet pair facet angle is 33.5 °-34.5 °.
In order to form perfect symmetry, it is preferable that meet following additional parameter: bigger than the main facet angle in booth portion 1.2 ° of the angle of little of (1) booth portion waist；(2) angle of little of bizet waist should big 3.8 ° of the angle of facet more main than bizet；And (3) angle of bizet star facet should slow 4 °-5 ° of the angle of facet more main than bizet.
Method for the present invention it is also important that, all facets are all with little angle tolerance cutting, making the angle difference between the angle of all booth portion facets less than 0.30, the angle tolerance between four main facets of bizet is less than 0.40, and the angle tolerance between four bizet pair facets is less than 0.30.
Accompanying drawing explanation
When read in conjunction with the accompanying drawings, other advantages will be known from the further detail below of the present invention, wherein:
Figure 1A is the front view of the square diamond of princess of the present invention；
Figure 1B is the top view of the square diamond of princess of Figure 1A；
Fig. 1 C is the upward view of the square diamond of princess of Figure 1A；
Fig. 2 A is the top view of princess's cut of the present invention in the first elementary step of early stage being in formation according to the present invention；
Fig. 2 B is another top view similar with Figure 1A of the princess's cut being in the stage of ultimately forming according to the present invention；
Fig. 2 C is another upward view similar with Figure 1A of the princess's cut being in the stage of ultimately forming according to the present invention；
Fig. 3 A and Fig. 3 B represents the desirably circular eight real heart eight arrow patterns cut in diamond；
Fig. 3 C and Fig. 3 D represents the example of the unacceptable eight heart eight arrow patterns close to perfect eight heart eight arrow patterns；
Fig. 4 A and Fig. 4 B represents the eight heart eight arrow patterns for the square diamond of the princess according to the present invention respectively；
Fig. 5 A is the front view of the alternate embodiment of the square diamond of princess of the present invention；
Fig. 5 B is the top view of the square diamond of the princess in Fig. 5 A；And
Fig. 5 C is the upward view of the square diamond of the princess in Fig. 5 A.
Detailed description of the invention
Diamond is a kind of crystal as prism, carrys out dispersed light for reflection and refraction.When suitably cutting, diamond has the feature that very noticeable fire is color.The square diamond of princess of the present invention is shown respectively in Figure 1A, Figure 1B and Fig. 1 C, including representing the bizet at diamond top, being positioned at the booth portion 14 below bizet and the waist g separated with booth portion 14 by bizet.Fig. 5 A, Fig. 5 B and Fig. 5 C are the alternate embodiments of the present invention, wherein use identical accompanying drawing labelling when facet is identical.It is true that the unique difference between the alternate embodiment of the embodiment of Figure 1A, Figure 1B and Fig. 1 C and Fig. 5 A, Fig. 5 B and Fig. 5 C is three the little booth portion pair facet b eliminating the corner cut side, booth portion being shown respectively in Figure 1A and Fig. 1 C respectively.These three facet is inoperative to the formation of eight heart eight arrow patterns.
Bizet includes the table top TF as the cutting topmost of diamond and maximum surface, around smooth symmetrically arranged four the main facets of bizet of table top TF and four bizet pair facet d, four bizet pair facets are symmetrically disposed in each corner of diamond between bizet main facet c, represent four corner facets of diamond.Each in four bizet main facet c is cut in the side of smooth table top TF, to form two bizet star facet c3, and it is cut to form little c of two bizet waists at its opposite side1.Each bizet pair facet d of princess's cut of the present invention includes little c of two bizet pair waists2, wherein little c of bizet pair waist2The corner cut side at one end jointly alignd to form diamond.Each little c of bizet pair waist on corner cut side2Little with bizet waist c1In adjacent little c of a bizet waist1The angle that shape is at 45 °.The parameter that form princess cut according to the present invention and polishing requirement are discussed more fully below.
Two the bizet star facet c formed by the main facet c of each bizet of the side of adjacent table top TF3Alignment, in the intersection of the half being substantially equal to the contiguous main facet c of the bizet distance longitudinally measured.Little c of two bizet waists1Square rim is formed in the side relative with table top TF of main bizet.Eight (8) little c of individual bizet waist1, eight (8) individual little c of bizet pair waist2With eight (8) individual bizet star facet c3All there is the shape of triangle.Therefore, the outer peripheral edge of diamond has eight sides, and described eight sides include by eight (8) little c of individual bizet waist1Formed four bizet major opposing sides and by eight (8) individual little c of bizet pair waist2Four the bizet pair facet d formed.
The waist g that bizet separates with booth portion 14 has four main facets of waist, and the main facet of described waist is positioned at the plane vertical with the plane of smooth table top TF, and can have four secondary corner cut facets.The height of bizet is to measure vertically from smooth table top TF to waist g.Booth portion 14 extends to the point 16 being called vertex (vertices) from waist g, represents and is commonly referred to the distance that booth is deep.The booth portion 14 of diamond is at upward view Fig. 1 C with shown in Fig. 5 C of alternate embodiment, by terminating at eight the main facet in booth portion a of vertex (vertices) 16, ten six (16) individual booth portion little a of waist1Constitute with four (4) individual booth portion pair facet b.In the embodiment of Fig. 1 C, there are eight (8) individual booth portion pair corner cut facet a2, and it being called that four (4) individual facet cc of central plane are positioned at the position adjacent with waist g, facet cc is shown more clearly that in Figure 1A and Fig. 1 C.In the alternate embodiment shown in such as Fig. 5 A, Fig. 5 B and Fig. 5 C, eliminate eight (8) individual booth portion pair corner cut facet a2With four facet cc.
Can know that from Fig. 2 A-Fig. 2 C eight sides of the square diamond of princess do not have equal length.As shown in Figure 2 A, Quad Sides A is longer than incisal angle edge B, and leading role α is polished α > β, wherein corner cut leading role is than slow 0.8 °-1.2 ° of the leading role on Quad Sides.This difference of size between main facet on square side and the main facet on corner cut side makes it possible to form eight heart eight arrow patterns in princess's cut, and this will be explained further below.
In fig. ib, bizet star facet c3It is shown as existing only on the square side of diamond, wherein little the c of each bizet waist on square side1Than little the c of bizet pair waist on corner cut side2Long.Main for bizet facet c and bizet pair facet d is polished, in order to the princess's cut for the present invention provides square appearance, and wherein the main facet of the main facet of bizet and booth portion is cut with point-device angle.
For gemmologist, cut is to affect the most important factor that diamond is beautiful.Round diamond can be cut into the round-shaped of the almost Perfect with symmetrical facet, thus presenting eight heart eight arrow patterns.When light impinges upon on table top side, eight heart eight arrow patterns can be easily observed from the end, booth portion of diamond.The eight real heart eight arrow patterns are considered as the ultimate of cutting accuracy, and illustrate for circular cut in Fig. 3 A and Fig. 3 B.It will be evident that exist around symmetrical through the axis of table top central authorities and eight foldings of vertex (vertices) 16 from Fig. 3 A and Fig. 3 B, having eight hearts and eight arrows, wherein Fig. 3 A illustrates 8 symmetrical hearts, and Fig. 3 B illustrates 8 symmetrical arrows.By impinging upon the light of table top end so that " heart " can be clearly apparent from end, booth portion along the axis of symmetry of diamond, when light impinges upon end, booth portion, in table top end from diamond it can be seen that " flechette-type pattern ".Fig. 3 C and Fig. 3 D illustrates the example of the unacceptable eight heart eight arrow patterns close to perfect eight heart eight arrow patterns.
Only when meeting the following conditions, circular cutting diamond just there will be eight heart eight arrow patterns:
● the shape of diamond is symmetrical.
● there are 8 main facets of bizet and 24 bizet pair facets.
● there are 8 main facets in bottom and 16 secondary facets in bottom.
● all main facets (bizet and bottom) must polish each other in perfect 45° angle.
● all facets are ideally alignd.
● the main facet in all bottoms has identical size, and angular range is between 40.6 °-41.0 °.
● the pair facet of all bottoms has an identical size, and angle is just steeper 1.20 (bottom main facet angle be 40.6 °-41.0 °+bottom pair facet angle be 41.8 °-42.2 °) than main facet.
● the main facet of all bizets has identical size, and angular range is between 33.8 °-35.1 °, and ideally aligns in the main facet in bottom.
● all bizet pair facets have identical size, and ideally align in the main facet of bizet and bottom pair facet, and polish with equal angles.
● cutting ratio should be as follows:
Complete deeply than 59.4%-62.4%
Crown height compares 14.5%-16.0%
Waist thickness rate 1.5%-2.95%
Circularity 99.0%-100%
Platform width compares: 53.0%-57.5%
Complete deep in %=height/width × 100
Its camber is measured from table top TF to vertex (vertices) and is obtained, and width is the diameter of waist.
● the angle difference between main facet is less than 1 °, and the angle difference between secondary facet is less than 0.5 °.
Being hardly produced eight heart eight arrow patterns in princess's cut, this is that the symmetry of the square configuration due to princess's cut is poor than circular symmetry, the quantity difference of facet, and light differently reflects.And shape is chiseled for princess and needs that there are minimum eight main bizets, it is represented by the combination of the main facet of bizet and bizet pair facet, and each main bizet should have parallel relative main bizet.According to the invention solves, the problem that shape is difficult to form the eight real heart eight arrow patterns is chiseled for princess, as described in above in association with Fig. 2 B, by bizet pair facet d is polished to less than four major opposing sides, make when observing diamond from table top side, prevent the octagon geometry with same side, and allow on each corner cut side with the angle of accurately 45 degree all little c of bizet pair waist2Polishing；Namely little the c of bizet pair waist on corner cut side it is present in2With little the c of bizet waist on square side1Between angle should be accurately 45 °.Additionally, will abut against the eight of table top star facet c3Polishing, and do not touch four bizet pair facet d on corner cut side.Additionally, as described in above in association with Fig. 2 C, by the booth portion pair facet on corner cut side with the angle polishing than the angle on longer booth portion pair square side steep (greatly) so that ξ > φ.
Following additional parameter should be met require to obtain the eight real heart eight arrow patterns in princess's cut:
● complete deep ratio 68%-71%, with circle class like measure, wherein width measure be longitudinal direction waist sizes
● booth is deeply than 51%-53.5%
● crown height compares 14%-15.5%
● platform width compares: 53%-59%
● waist thickness rate 1%-3.5%
If cutting parameter falls between the foregoing, and the main facet of the main facet of bizet and booth portion cuts into following point-device angle, then eight heart eight arrow patterns will occur with not distorting:
● the main facet angle in booth portion is 40.6 °-41.0 °
● the main facet angle of bizet is 34.0 °-35.2 °
● booth portion pair facet angle is 64 °-67 °
● bizet pair facet angle is 33.5 °-34.5 °
● steep 1.2 ° of the angle of the angle facet more main than booth portion of little of booth portion waist
● steep 3.8 °-4.2 ° of the angle of the angle facet more main than bizet that bizet waist is little
● slow 4 °-5 ° of the angle of the angle facet more main than bizet of bizet star facet.
And, all facets are required for cutting into very little angle tolerance, namely the angle difference between the angle of all booth portion facets is necessarily less than 0.3 °, and the angle tolerance between four main facets of bizet is necessarily less than 0.4 °, and between four bizet pair facets, angle tolerance is necessarily less than 0.3 °.
When realizing above-mentioned all conditions, if polishing meets following additional requirement, then the princess eight heart eight arrow diamond manufactured will have the symmetry of almost Perfect.
● the bizet of all polishings and the facet of booth portion have identical size, allow the tolerance of 0.04% between each facet；
● vertex (vertices) (cusp of diamond) ideally must be felt relieved with the tolerance of 0.03%；
● the shape of the diamond determined by waist, namely four main facets of waist and four waist pair facets (facet in corner) should be in 45 degree of angles for they are polished to relative to each other angle, wherein allow the tolerance of 0.030；And
Four necessary length of the main facet of waist are identical so that result shows the length/width ratio of 1.00 when measuring；Allow the tolerance of 0.035.
When observing all above-mentioned cutting parameters, gem gets out the glossing step that experience is last, and it is color that this step will give its fire of gem, and make eight heart eight arrow patterns occur.
● little of booth portion waist must be polished to close to perfect symmetry and the degree of depth, and ideally aligns each other；
● little of bizet waist must be polished to close to perfect symmetry and the degree of depth, and ideally aligns each other, and ideally aligns with the little face of waist, booth portion；
● bizet star facet must be polished to close to perfect symmetry, and must be bonded with each other in the just half distance of the main facet of bizet.
All of star facet with the little face of waist all with identical angle polishing, it is allowed to the maximum allowance of 0.30.
After all facets of the square diamond of princess are cut according to above-mentioned operation, by obtaining, there are eight heart eight arrow patterns of eight heart eight arrows specific to desirable circular cutting diamond.And, the square diamond of princess of the improvement of the present invention not only has eight heart eight arrow patterns, and presents the square configuration of straight edge.Fig. 4 A and Fig. 4 B illustrates eight heart eight arrow patterns of the square diamond of princess of the improvement according to the present invention.
Claims (9)
- null1. the square diamond of princess improved，There is the shape of symmetry，There are eight heart eight arrow patterns specific to the eight real heart eight arrow patterns in circular cutting diamond，Comprising: 1 table top、4 main facets of bizet、Little of 8 bizet waists、8 bizet star facets、4 bizet pair facets、Little of 8 bizet pair waists、8 main facets in booth portion、4 booth portion pair facets、Little and 1 waist of 16 booth portion waists，Wherein，8 little of bizet waists define the Quad Sides representing the long limit of diamond every a pair，The incisal angle edge defining diamond for every a pair in 8 little of bizet pair waists，Described incisal angle edge is between little paired of bizet waist，Wherein the length of each incisal angle edge is less than the length on each long limit，And corner cut leading role is than slow 0.8 ° to 1.2 ° of the leading role on Quad Sides，The angle of the angle facet more main than booth portion of little of booth portion waist is steep，And the main facet of each bizet has a pair bizet star facet being symmetrically disposed in its side adjacent with described table top and little of a pair bizet waist being symmetrically disposed in its opposite side，Wherein the side of the adjacent flats of every pair of bizet star facet is in the intersection of the half of the relatively long distance being equal to the main facet of bizet flatly measured，And all bizet star facets have identical polishing angle，And the bizet pair waist little mask adjacent with the main facet of each bizet has identical polishing angle，Each little mirror polish of bizet waist becomes aligned with each other and little of with booth portion waist neat，Little of bizet pair waist forms four corner cut sides in diamond，Each corner cut side has little of two bizet pair waists，And the angle that little of each bizet pair waist is at 45 ° with adjacent little shape of bizet waist，All of bizet star facet is all with identical angle polishing，The little face of all of waist is all with identical angle polishing，All of bizet star facet and the little face of waist are polished to the maximum allowance with 0.3，The square diamond of princess of described improvement is characterised by,In eight main facets in booth portion four directly contact with the outer rim of diamond in four corner cut sides of diamond, and each of the four additional in eight main facets in booth portion and four booth portion pair facets directly contacts,And, further characterized in that, four the main facets in booth portion directly contacted with the outer rim of diamond are longer than the length of each four the main facet in booth portion directly contacted with four booth portion pair facets in length, cut, with circle, the eight heart eight arrow patterns that eight heart eight arrow patterns specific to diamond are suitable, without the pair corner cut facet of any booth portion occurs thus creating.
- 2. the square diamond of princess as claimed in claim 1, in princess's cut, wherein obtain the eight real heart eight arrow patterns it suffices that additional parameter require be:Complete deep ratio is between 68%-71%；Booth ratio deeply is between 51%-53.5%；Crown height ratio is between 14%-15.5%；Platform width ratio is between 53%-59%；AndWaist thickness rate is between 1%-3.5%.
- 3. the square diamond of princess as claimed in claim 2, the main facet of wherein said bizet and the main facet in described booth portion are cut into further:The main facet angle in booth portion is between 40.6 °-41.0 °；The angle of the main facet of bizet is between 34.0 °-35.2 °；The angle of booth portion pair facet is between 64 °-67 °；AndThe angle of bizet pair facet is between 33.5 °-34.5 °.
- 4. the square diamond of princess as claimed in claim 3, wherein(1) big 1.2 ° of the angle of the angle facet more main than booth portion of little of booth portion waist；(2) big 3.8 ° of the angle of the angle facet more main than bizet of little of bizet waist；And(3) slow 4 °-5 ° of the angle of the angle of bizet star facet facet more main than bizet.
- null5. the polished diamond method to form the square diamond of princess by the improvement showing eight heart eight arrow patterns，Described diamond includes: 1 table top、4 main facets of bizet、Little of 8 bizet waists、8 bizet star facets、4 bizet pair facets、Little of 8 bizet pair waists、8 main facets in booth portion、4 booth portion pair facets、Little and 1 waist of 16 booth portion waists，Wherein the main facet of each bizet has a pair bizet star facet being symmetrically disposed in its side adjacent with described table top、With little of a pair bizet waist being symmetrically disposed in its opposite side，The angle that the main facet of bizet on the Quad Sides of diamond has is more than the angle formed by the bizet pair facet on the incisal angle edge of diamond，And the angle of the angle facet more main than booth portion of little of booth portion waist is steep，The angle of the angle facet more main than bizet that bizet waist is little is steep，And have between 68%-71% complete deep than，Wherein complete deep in %=height/width × 100，Wherein，Princess's cut has eight heart eight arrow patterns specific to the eight real heart eight arrow patterns in circular cutting diamond，Said method comprising the steps of:Bizet pair facet is polished to the length of little less than bizet waist of length, it is aligned with each other and little of with booth portion waist neat that each little mirror polish of bizet waist is become, and bizet pair facet forms four corner cut sides in diamond, each corner cut side has little of two bizet pair waists, and the bizet little mirror polish of pair waist is become and becomes just 45 degree of angles relative to little adjacent of bizet waist, it is characterized in thatBy the side, booth portion of polished diamond, the angle making the angle facet more main than booth portion of little of booth portion waist is steep, and by polishing four in eight main facets in booth portion, they are directly contacted with the outer rim of diamond in four corner cut sides of diamond, and by polishing the four additional in eight main facets in booth portion, they each with 4 booth portion pair facets are directly contactedAnd, further characterized in that, four the main facets in booth portion directly contacted with the outer rim of diamond are longer than the length of each four the main facet in booth portion directly contacted with four booth portion pair facets in length, cut, with circle, the eight heart eight arrow patterns that eight heart eight arrow patterns specific to diamond are suitable, without the pair corner cut facet of any booth portion occurs thus creating.
- 6. method as claimed in claim 5, the main facet of wherein said bizet and the main facet in described booth portion have following cutting angle:The angle of the main facet in booth portion is 40.60 °-41 °；The angle of the main facet of bizet is 34.0 °-35.2 °；And the angle of bizet pair facet is 33.5 °-34.5 °.
- 7. method as claimed in claim 6, wherein(1) from bigger than the angle formed by the main facet in described booth portion 1.2 ° of the angle of little of the described booth portion waist that described table top (TF) is measured；(2) formed from described table top (TF) polishing by little angle formed of described bizet waist, bigger than the angle formed by the main facet (c) of described bizet 3.8 ° of size aspect；And(3) angle of described bizet star facet forms from described table top (TF) polishing so that the angle formed by bizet star facet delays 4 °-5 ° than the corresponding angle formed by the main facet of described bizet.
- 8. method as claimed in claim 7, all of which facet is to cut from described table top (TF) surface with little angle tolerance, make the cutting angle difference between all booth portions facet angle less than 0.3 °, and the angle tolerance between four main facets of bizet is less than 0.4 °, and the angle tolerance between four bizet pair facets is less than 0.3 °.
- 9. method as claimed in claim 6, all of which facet is with little angle tolerance cutting, make the cutting angle difference between all booth portions facet angle less than 0.3 °, and the angle tolerance between four main facets of bizet is less than 0.4 °, and the angle tolerance between four bizet pair facets is little 0.3 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310071335.8A CN103932462B (en) | 2013-01-23 | 2013-01-23 | There is the square diamond of princess and the method for the improvement of eight heart eight arrow patterns |
| TW102105312A TWI588003B (en) | 2013-01-23 | 2013-02-08 | Modified princess cut diamond having hearts and arrows pattern and method |
| HK14109247.6A HK1195716A1 (en) | 2013-01-23 | 2014-09-12 | Modified princess cut diamond having hearts and arrows pattern and method |
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| CN201310071335.8A CN103932462B (en) | 2013-01-23 | 2013-01-23 | There is the square diamond of princess and the method for the improvement of eight heart eight arrow patterns |
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| CN103932462B true CN103932462B (en) | 2016-07-06 |
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| USD439542S1 (en) * | 2000-05-09 | 2001-03-27 | M. Fabrikant & Sons, Ltd. | Gemstone |
| USD522908S1 (en) * | 2005-03-23 | 2006-06-13 | Horowitz Trading, Inc. | Gemstone |
| WO2012164410A1 (en) * | 2011-05-27 | 2012-12-06 | Octonus Dia-Tech Private Ltd. | Method for determining a cut for a gemstone |
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| US20030221452A1 (en) * | 2002-05-30 | 2003-12-04 | Mickey Weinstock & Co. | Jewel bearing a gemstone |
| US7992410B2 (en) * | 2005-11-23 | 2011-08-09 | Worldwide Diamond Trademarks Ltd. | Modified princess cut diamond having hearts and arrows pattern and method |
| US8353181B2 (en) * | 2007-05-04 | 2013-01-15 | Worldwide Diamond Trademarks Ltd. | Heart shaped diamond cut having hearts and arrows pattern |
| CN102238885B (en) * | 2008-09-16 | 2015-02-11 | 全球钻石商标有限公司 | Decagonal shaped diamond which displays hearts and arrows pattern |
-
2013
- 2013-01-23 CN CN201310071335.8A patent/CN103932462B/en active Active
- 2013-02-08 TW TW102105312A patent/TWI588003B/en active
-
2014
- 2014-09-12 HK HK14109247.6A patent/HK1195716A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD439542S1 (en) * | 2000-05-09 | 2001-03-27 | M. Fabrikant & Sons, Ltd. | Gemstone |
| USD522908S1 (en) * | 2005-03-23 | 2006-06-13 | Horowitz Trading, Inc. | Gemstone |
| WO2012164410A1 (en) * | 2011-05-27 | 2012-12-06 | Octonus Dia-Tech Private Ltd. | Method for determining a cut for a gemstone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103932462A (en) | 2014-07-23 |
| TW201429661A (en) | 2014-08-01 |
| HK1195716A1 (en) | 2014-11-21 |
| TWI588003B (en) | 2017-06-21 |
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