CN101721021A - Cut diamond and cutting method - Google Patents
Cut diamond and cutting method Download PDFInfo
- Publication number
- CN101721021A CN101721021A CN200910180948A CN200910180948A CN101721021A CN 101721021 A CN101721021 A CN 101721021A CN 200910180948 A CN200910180948 A CN 200910180948A CN 200910180948 A CN200910180948 A CN 200910180948A CN 101721021 A CN101721021 A CN 101721021A
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- cut
- facets
- diamond
- facet
- waist
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C17/00—Gems or the like
- A44C17/001—Faceting gems
Abstract
A cut diamond and its cutting method. The cut diamond, characterized in that it is a convex polyhedron and has eighty-nine facets, which are thirty-two facets more than a traditional ideal-cut brilliant, in particular eight extra facets on the crown by substituting each of the eight kite facets of a traditional ideal-cut brilliant diamond by two triangular facets, namely a table break facet and a girdle break facet, which have a common edge namely the girdle break which lies in a plane parallel to the table, and whereby twenty-four of the thirty-two extra facets are added in the pavilion by substituting each of the eight lower main facets of a traditional ideal-cut brilliant with four facets, namely a bottom star pavilion, two bottom star halves, and bottom girdle pavilion, touching each other in a point, namely the meeting point, and whereby the pavilion height is approximately three percent longer than the pavilion height in the corresponding traditional ideal-cut brilliant.
Description
Technical field
The present invention relates to the diamond and the cut method thereof of cut.
Background technology
The quality of the decorative diamond of cut and polishing and value are described by four C usually:
-carat
-cleanliness
-color
-cut
Carat is the unit of weight of diamond, and one carat equals 200 milligrams.Tradition, the value of diamond are to decide by its size or in the weight of carat always.Jewel is big more, is worth just high more.
Cleanliness refers to already present flaw and intrinsic contaminant in the former stone.
Color is also by former stone decision.Colourless and transparent jewel is rare, and more valuable thus.
Cut refers to cut and the polishing to jewel of given shape with a plurality of facets.Jewel is determined to enter the light of jewel with the path of following by the mode of cut.Nearly all light that enters jewel also will leave jewel once more.To determine the degree of glittering (brilliance) and the fiery chroma (fire) of jewel along reflection, refraction and the scattering of light path.
Color and cleanliness are the essential attributes of jewel, have set up the grading scale at it.The value that can not change them increases the value of jewel.
In history, once can remove simultaneously the mode of fault location (image patch point or particle) and come cut and polish a gem to attempt in technology to keep maximum weight.Because the effect of light in jewel was not conditioned, thus light to fail to produce a lot of fire color, also in jewel, form degree of glittering.
In nearest several centuries, the degree of glittering that jewel presented of cut and fiery chroma become the more valued feature of the weight more simple than jewel.
Even with modern technologies, the cut and the polishing of diamond crystal always caused the massive losses of weight; This loss is less than 50% hardly.
When crystal was octahedron, round bur becomes clear, and (round brilliant cut) was normally preferred for the formula cut, because can go out two jewels from a crystal cut usually.Just like its name, bright formula cut is characterised in that big degree of glittering and fiery chroma.
In 17th century mid-term, with the form cut that is called as campstool woods or similar bright formula first diamond, described campstool woods or similar bright formula are the predecessors of bright formula cut today.Since then, the bright further evolution of formula cut.
The size and the angle that are used to maximize the bright formula cut of difference of degree of glittering once determined by skill rather than by Institute of Science.In 1912, Marcel Tolkowsky published his books " Diamond design, A study of Reflectionand Refraction in Diamond (diamond design, the research of diamond reflection and refraction) ".These books comprise Mathematics Research, decide the optimal angle and the size that realize maximum degree of glittering with bright formula cut.
The ideal model of Tolkowsky is not considered all aspects: it is a two-dimensional model, does not consider the effect of waist.Since then, the rough fine setting of this model.In any case but very good and be that the investigation of the diamond that only obtains with skill is found for being considered to cut and polishing, such diamond has size size and the angle identical with angle with the ideal model prediction of Tolkowsky.
We may safely draw the conclusion, can be influenced the value that has to the jewel of sizing by the mode of cut by changing jewel.Purpose is to obtain degree of glittering and fiery chroma maximum in the jewel, keeps possible maximum weight simultaneously.
Problem is that these are afoul requirements.
Summary of the invention
Therefore, the object of the present invention is to provide a solution, this solution alleviates above mentioned shortcoming and other shortcomings at least.
For this reason, the present invention discloses a kind of diamond of cut, it is characterized in that, described diamond is a convex polyhedron, and have eight nineteen facets, it Duos 32 facets than the bright formula cut of traditional ideal (ideal-cut brilliant), especially, by in eight kite facets of the diamond of the bright formula cut of traditional ideal each is replaced by two triangle facets---table top turnover facet and waist turnover facet and on bizet, add eight extra facets, described two triangle facets have public edge---be positioned at the waist turnover on the plane parallel with table top, and by with eight of the bright formula cut of traditional ideal four facets contacting with each other on being replaced by on one point of each in the main facets down---following waist booth portion, two following star half ones and following star booth portion and other 24 facets in described 32 the extra facets of interpolation in booth portion (3), described point is an engagement point, and thus booth portion highly roughly than booth portion highly big 3% in the bright formula cut of corresponding traditional ideal.
Really further improved the degree of glittering and the fiery chroma of such diamond according to the diamond of cut of the present invention, and, allowed to keep more former stone weight simultaneously than bright formula cut design.
Therefore, be to keep according to the most important technical characterictic of the diamond of cut of the present invention than the weight of the bright formula cut of ideal.Aesthetics of the present invention and qualitative character are according to the degree of glittering of the increase that diamond represented of cut of the present invention and fiery chroma.Another aesthetic features is can observed anistree star in this diamond.
Description of drawings
For characteristic of the present invention is shown better, after describe the preferred form of the diamond embodiment of cut with reference to the accompanying drawings, as the embodiment that does not have any restricted characteristic, in the accompanying drawings:
Fig. 1 schematically shows out the front view according to the diamond (prior art) of the bright formula cut of known ideal;
Fig. 2 is the top view of diamond among Fig. 1;
Fig. 3 is the bottom view of diamond among Fig. 1;
Fig. 4 illustrates along the part cross section of Fig. 2 center line IV-IV;
Fig. 5 schematically shows out the front view according to the diamond of cut of the present invention;
Fig. 6 is the top view of diamond among Fig. 5;
Fig. 7 is the bottom view of diamond among Fig. 5;
Fig. 8 illustrates along the part cross section of Fig. 6 center line VIII-VIII; And
Diamond in Fig. 9 presentation graphs 5 wherein indicates some light.
The specific embodiment
Because begin to explain the most simply shape according to the diamond of cut of the present invention from the shape of the bright formula cut of ideal, therefore, we will at first explain the geometric layout of the bright formula cut 1 (prior art) of such ideal.
When not having vertex (vertices), desirable bright formula cut 1 is made of 57 facets.The shape of such diamond can draw from Fig. 1 to 4.
Desirable bright formula cut 1 is made of top that is called as bizet 2 and the lower part that is called as booth portion 3.These two parts are separated by the dish (being called as waist 4) of relative thin.For purposes of the present invention, waist 4 need not exist.When not having waist 4, bizet 2 and booth portion 3 total horizontal planes still are called as central plane.Waist 4 itself can be chiseled facet (facetted) to be arranged or do not chisel facet.This and the present invention have nothing to do.
Bizet 2 comprises 33 facets.
The top facet of bizet 2 is arranged in horizontal plane, and is called as table top (table) 5.
There are eight bizet kites facet, 6, eight bizet stars facet 7 and 16 first half facets 8.
In the bright formula cut 1 of ideal, as is known, be the axis of eightfold symmetry by table top 5 centers and by booth portion 3 spikes or the axis by vertex (vertices) (if present) center.
The shape of desirable bright formula cut 1 can be described by eight independent parameter.Can easily calculate other ratios from these independent parameter.Following table 1 has been summed up most important parameter in known manner, and points out the mark in its scope and the accompanying drawing.
Table 1
So importantly do not measure g, it indicates the minimum constructive height as the waist 4 that can see among Fig. 1.
The bright formula cut 1 of ideal that does not have vertex (vertices) shown in the drawings.
The diamond cut 11 that does not have the vertex (vertices) facet according to the present invention also is a convex polyhedron, but it has eight nineteen facets.Therefore, this is than more than 1 32 facets of the bright formula cut of traditional ideal.
Eight facets in these extra facets are to add in the following manner on the bizet 2, each that is about in eight kite faces 6 of the bright formula cut diamond of traditional ideal is replaced by two triangle facets (being table top turnover facet (break facet) 12 and waist turnover facet 13), these two triangle facets have public edge, promptly are positioned at the waist turnover (break) on the plane parallel with table top 5.
Vocabulary " substitutes " and only is used for indicating desirable bright formula cut 1 that the face of part takes place to revise in this article.It of course not indicates diamond 11 intentions according to cut of the present invention to begin to obtain from the bright formula cut 1 of ideal.
Other 24 facets in 32 extra facets are to add booth portion 3 in the following manner to, be about to eight of the bright formula cut 1 of traditional ideal down each in the main facets 10 be replaced by four facets (promptly descending waist booth portion 14, two following star half ones 15 and following star booth portion 16).
As for example can seeing in Fig. 5, these four facets contact with each other on more out-of-plane being positioned at the main facet of the bright formula cut of corresponding ideal 1 time 10.These points should be selected like this, and feasible diamond 11 according to cut of the present invention is essentially convex polyhedron.Fig. 6 illustrates the top view of diamond among Fig. 5.Fig. 7 illustrates the bottom view of diamond among Fig. 5.Fig. 8 is the part cross section along Fig. 6 center line VIII-VIII.
By table top 5 centers and by booth portion 3 spikes or the axis by vertex (vertices) (if present) the center axis of eightfold symmetry preferably.
Following table 2 has been summed up the most important parameter of preferred embodiment according to the diamond 11 of cut of the present invention, and points out the mark in its scope and the accompanying drawing.
Table 2
Wherein, bizet turnover (crown break) (facet) is the table top turnover facet (table breakfacet) 12 among the accompanying drawing 5-8.It is 8 facet that waist half one (girdle halves) (facet) is label among the accompanying drawing 5-7.
Light is in the scattering of bizet turning point and be refracted in the diamond.The light of refraction is fallen extra 24 facets of booth portion 3, and excites back star-like pattern to table top.Typically, darker than the booth portion of desirable bright formula cut 1 according to the booth portion 3 of the diamond 11 of cut of the present invention, this makes the diamond of such cut light be remained in the diamond more of a specified durationly.Schematically show this " tube effect " among Fig. 9.
Can have according to the diamond 11 of cut of the present invention and to chisel the waist 4 that facet is arranged or not have this waist.Either way be regarded as falling into the replacement scheme of the present invention's protection.In view of the above, under the situation of chiseling the waist 4 that facet is arranged, the quantity of waist facet is according to the state of the art decision of this area.
In another interchangeable form, can have the vertex (vertices) facet of the bottom of adding booth portion 3 to according to the diamond 11 of cut of the present invention.
The invention still further relates to the diamond cut is the method for such shape, and described shape has and satisfies the size that provides among Fig. 2 and the geometric layout of angular range condition.
In any case the present invention is not limited to the form of the embodiment describing and provide in the accompanying drawings in the mode of embodiment, but the diamond of such cut can be realized and not depart from scope of the present invention with various forms according to the present invention.
Claims (8)
1. the diamond of a cut (11), wherein said diamond is convex polyhedron and has eight nineteen facets, Duo 32 facets than the bright formula cut (1) of traditional ideal, especially, by in eight kite facets (6) of the diamond (1) of the bright formula cut of traditional ideal each is replaced by two triangle facets---table top turnover facet (12) and waist turnover facet (13) and go up eight extra facets of interpolation at bizet (2), described two triangle facets have public edge---be positioned at the waist turnover on the plane parallel with table top (5), and by with eight of the bright formula cut (1) of traditional ideal four facets---the following waist booth portions (14) that contact with each other on being replaced by on one point of each in the main facets (10) down, two following star half ones (15) and following star booth portion (16) and add other 24 facets in described 32 extra facets in booth portion (3), described point is an engagement point, and booth portion is highly roughly than booth portion highly big 3% in the bright formula cut (1) of corresponding traditional ideal.
2. the diamond of cut according to claim 1 (11), wherein said eight following star booth portion's facets (16) engage at vertex (vertices) or at the spike place of described booth portion (3), to form the symmetrical anistree star when observing from the bottom.
3. the diamond of cut according to claim 1 and 2 (11), wherein follow the value that provides in the following table with respect to the different size and the angle of waist diameter:
4. according to the diamond (11) of the described cut of one of aforementioned claim, be the axis of eightfold symmetry wherein by described table top (5) center and by described booth portion's (3) spike or the axis by the vertex (vertices) center.
5. according to the diamond (11) of the described cut of one of aforementioned claim, wherein said waist (4) is not chiseled facet.
6. according to the diamond (11) of the described cut of one of aforementioned claim, wherein said waist (4) is chiseled facet.
7. according to the diamond (11) of the described cut of one of aforementioned claim, wherein there is the vertex (vertices) facet.
8. one kind with the method for diamond cut to a shape, and described shape has and satisfies the size that provides in the appended form of claim 3 and the geometric layout of angular range condition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08018467.4 | 2008-10-22 | ||
| EP08018467A EP2179672B1 (en) | 2008-10-22 | 2008-10-22 | A cut diamond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101721021A true CN101721021A (en) | 2010-06-09 |
| CN101721021B CN101721021B (en) | 2013-12-25 |
Family
ID=40457023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910180948.9A Expired - Fee Related CN101721021B (en) | 2008-10-22 | 2009-10-22 | Cut diamond and cutting method |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2179672B1 (en) |
| CN (1) | CN101721021B (en) |
| AT (1) | ATE551920T1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102669897A (en) * | 2011-03-07 | 2012-09-19 | D.施华洛世奇两合公司 | A gemstone with a chaton cut |
| CN103945726A (en) * | 2011-09-02 | 2014-07-23 | 安东尼·里奇 | Hearts & Arrows SiC gemstone |
| CN104309015A (en) * | 2014-09-30 | 2015-01-28 | 喻惠华 | Diamond processing method |
| CN104905503A (en) * | 2015-05-29 | 2015-09-16 | 通灵珠宝股份有限公司 | Circular carved type heart-shaped image diamond |
| WO2015155740A1 (en) * | 2014-04-11 | 2015-10-15 | Chow Tai Fook Jewellery Company Limited | Faceted precious stones |
| CN110122994A (en) * | 2019-05-05 | 2019-08-16 | 中国地质大学（武汉） | The 81 facets circle cut diamond of wholeheartedly ten arrow effects is presented in a kind of bizet |
| CN112312790A (en) * | 2018-05-18 | 2021-02-02 | 艾伯特加德有限公司 | Gem and cutting method thereof |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012156336A1 (en) * | 2011-05-17 | 2012-11-22 | Zipangu Swiss Gems Ag | Gemstone |
| US9462859B2 (en) * | 2013-09-16 | 2016-10-11 | John William Disinger | Light emitting jewelry |
| US20160166021A1 (en) * | 2014-12-11 | 2016-06-16 | Hasenfeld-Stein, Inc. | Round cut gemstone exhibiting excellent optical brilliance |
| US11103035B2 (en) * | 2016-02-17 | 2021-08-31 | Ng Developments, Llc | Light-emitting jewelry |
| US11234499B2 (en) | 2016-09-29 | 2022-02-01 | Gem S.T.S. Co., Ltd. | Gemstone |
| US20190274399A1 (en) * | 2016-09-30 | 2019-09-12 | Love Cut, Inc. | Shallow Depth Cut Diamonds |
| CN111315252B (en) | 2017-08-16 | 2022-10-11 | Ng发展有限责任公司 | Luminous jewelry |
| CN114532678A (en) * | 2020-11-25 | 2022-05-27 | 恒信玺利实业股份有限公司 | Diamond with lip print image effect and processing method |
| US20220202150A1 (en) * | 2020-12-28 | 2022-06-30 | Dariusz Szwarc | Articles of jewelry |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH436812A (en) * | 1965-06-22 | 1967-05-31 | Huisman James | Cut gemstone |
| BE1013545A3 (en) * | 2000-06-09 | 2002-03-05 | Tolkowsky Gabriel S | Decorative stone |
| JP3643541B2 (en) * | 2000-08-25 | 2005-04-27 | 株式会社ほほえみブレインズ | Decorative diamond cut design |
| CN1223442C (en) * | 2002-12-17 | 2005-10-19 | 全球股份有限公司 | Jewelry decorants, diamond and square zirconium and their cutting method |
| CN100386043C (en) * | 2003-09-12 | 2008-05-07 | 深圳市真诚美珠宝有限公司 | Round and shining type chiseled diamond and its carving method |
| US20050252241A1 (en) * | 2004-05-13 | 2005-11-17 | Israel Oster | Diamond cut |
| US20060086143A1 (en) * | 2004-10-27 | 2006-04-27 | Eugene Biro | Round cut gemstone |
| JP2006218163A (en) * | 2005-02-14 | 2006-08-24 | Crane:Kk | Jewel |
-
2008
- 2008-10-22 EP EP08018467A patent/EP2179672B1/en not_active Not-in-force
- 2008-10-22 AT AT08018467T patent/ATE551920T1/en active
-
2009
- 2009-10-22 CN CN200910180948.9A patent/CN101721021B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102669897A (en) * | 2011-03-07 | 2012-09-19 | D.施华洛世奇两合公司 | A gemstone with a chaton cut |
| CN102669897B (en) * | 2011-03-07 | 2015-01-07 | D.施华洛世奇两合公司 | A gemstone with a chaton cut |
| US10271621B2 (en) | 2011-03-07 | 2019-04-30 | D. Swarovski Kg | Gemstone with a chaton cut |
| CN103945726A (en) * | 2011-09-02 | 2014-07-23 | 安东尼·里奇 | Hearts & Arrows SiC gemstone |
| CN106163320A (en) * | 2014-04-11 | 2016-11-23 | 深圳市周大福珠宝制造有限公司 | Carved gem |
| WO2015155740A1 (en) * | 2014-04-11 | 2015-10-15 | Chow Tai Fook Jewellery Company Limited | Faceted precious stones |
| CN104309015B (en) * | 2014-09-30 | 2015-11-18 | 喻惠华 | A kind of method for processing diamond |
| CN104309015A (en) * | 2014-09-30 | 2015-01-28 | 喻惠华 | Diamond processing method |
| CN104905503A (en) * | 2015-05-29 | 2015-09-16 | 通灵珠宝股份有限公司 | Circular carved type heart-shaped image diamond |
| 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 |
| CN110122994A (en) * | 2019-05-05 | 2019-08-16 | 中国地质大学（武汉） | The 81 facets circle cut diamond of wholeheartedly ten arrow effects is presented in a kind of bizet |
| CN110122994B (en) * | 2019-05-05 | 2024-01-26 | 中国地质大学（武汉） | 81-facet round-cut diamond with crown presenting one-heart-ten-arrow effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101721021B (en) | 2013-12-25 |
| EP2179672B1 (en) | 2012-04-04 |
| EP2179672A1 (en) | 2010-04-28 |
| ATE551920T1 (en) | 2012-04-15 |
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