CN101721021B

CN101721021B - Cut diamond and cutting method

Info

Publication number: CN101721021B
Application number: CN200910180948.9A
Authority: CN
Inventors: 让·保罗·托尔科斯基
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-22
Filing date: 2009-10-22
Publication date: 2013-12-25
Anticipated expiration: 2029-10-22
Also published as: EP2179672B1; ATE551920T1; CN101721021A; EP2179672A1

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

The diamond of cut and cut method thereof

Technical field

The present invention relates to diamond and the cut method thereof of cut.

Background technology

The quality of the decorative diamond of cut 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 is by its size or in the weight of carat always.Jewel is larger, is worth just higher.

Cleanliness refers to already present flaw and intrinsic contaminant in former stone.

Color is also determined by former stone.Colourless and transparent jewel is rare, and more valuable thus.

Cut refers to have cut and the polishing of the given shape of a plurality of facets to jewel.Jewel is determined to enter the light of jewel by the path of following by the mode of cut.Nearly all light that enters jewel also will leave jewel again.To determine 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, for it, have set up the grading scale.The value that can not change them increases the value of jewel.

In history, once to attempt in technique to retain maximum weight, can remove the mode of fault location (image patch point or particle) simultaneously and carry out cut and polish a gem.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 the jewel of cut presents and fiery chroma become the more valued feature of the weight more simple than jewel.

Even with modern technologies, the massive losses that cut and the polishing of diamond crystal always caused to weight; This loss is less than 50% hardly.

When crystal is octahedron, round bur becomes clear, and (round brilliant cut) is normally preferred for the formula cut, because usually can go out two jewels from a crystal cut.Just like its name, bright formula cut is characterised in that large 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 for the bright formula cut of difference of maximization 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, and the formula cut that decides to become clear is realized optimal angle and the size of maximum degree of glittering.

The ideal model of Tolkowsky is not considered all aspects: it is two-dimensional model, does not consider the effect of waist.Since then, 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 and the angle identical with angle with the size of the ideal model prediction of Tolkowsky.

We may safely draw the conclusion, can be affected the value had 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 jewel, retains 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 at least alleviates above mentioned shortcoming and other shortcomings.

For this reason, the present invention discloses a kind of diamond of cut, it is characterized in that, described diamond is convex polyhedron, and there are eight nineteen facets, it is than many 32 facets of the bright formula cut of traditional ideal (ideal-cut brilliant), especially, each in eight kite facets of the diamond by the bright formula cut of the ideal by traditional is replaced by two triangle facets---table top turnover facet and waist turnover facet and add eight extra facets on bizet, described two triangle facets have public edge---be positioned at the waist turnover on the plane parallel with table top, and four facets that each under eight by the bright formula cut of the ideal by traditional in main facet contacts with each other on being replaced by one point---lower waist booth section, two lower star half ones and lower star booth section and add other 24 facets in described 32 extra facets in booth section (3), described point is engagement point, and booth section is highly roughly than booth section highly large 3% in the bright formula cut of corresponding traditional ideal thus.

Really further improve degree of glittering and the fiery chroma of such diamond according to the diamond of cut of the present invention, and, simultaneously than bright formula cut design, allowed to retain more former stone weight.

Therefore, according to the most important technical characterictic of the diamond of cut of the present invention, be to retain than the weight of the bright formula cut of ideal.Aesthetics of the present invention and qualitative character are degree of glittering and the fiery chromas of the increase that represents of the diamond according to cut of the present invention.Another aesthetic features is the anistree star that can observe in this diamond.

The accompanying drawing explanation

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 there is 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 in Fig. 1;

Fig. 3 is the bottom view of diamond in 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 in Fig. 5;

Fig. 7 is the bottom view of diamond in 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 indicate some light.

The specific embodiment

Because start to explain the most simply the shape according to the diamond of cut of the present invention from the shape of the bright formula cut of ideal, therefore, at first we will 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 consists of 57 facets.The shape of such diamond can draw from Fig. 1 to 4.

Desirable bright formula cut 1 consists of the upper part that is called as bizet 2 and the lower part that is called as booth section 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, the total horizontal plane of bizet 2 and booth section 3 still is called as central plane.Waist 4 itself can be chiseled facet (facetted) to be arranged or do not chisel facet.This is unrelated to the invention.

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.

Booth section 3 comprises 16 Lower Half facets 9, and main facet 10 under eight.Booth section 3 can also comprise the vertex (vertices) facet, and described vertex (vertices) facet is to be positioned near the face of the spike of booth section 3, and it is parallel to table top 5.

In the bright formula cut 1 of ideal, as is known, by table top 5 centers and be the axis of eightfold symmetry by booth section 3 spikes or the axis by vertex (vertices) (if present) center.

The shape of desirable bright formula cut 1 can be by eight parametric descriptions independently.From these independently parameter can easily calculate other ratios.Following table 1 has been summed up most important parameter in known manner, and points out the mark in its scope and accompanying drawing.

Table 1

So importantly do not measure g, it indicates the minimum constructive height of the waist 4 as seen in Fig. 1.

The bright formula cut 1 of ideal that does not there is vertex (vertices) shown in the drawings.

The diamond cut 11 that does not have the vertex (vertices) facet according to the present invention is also 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 bizet 2, each being 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, are positioned at the waist turnover (break) on the plane parallel with table top 5.

Vocabulary " substitutes " and only is used to indicate in this article the face that part occurs to revise in desirable bright formula cut 1.It is of course not indicated according to diamond 11 intentions of cut of the present invention and will start to obtain from the bright formula cut 1 of ideal.

Other 24 facets in 32 extra facets are to add in the following manner booth section 3 to, are about under eight of the bright formula cut 1 of traditional ideal each in main facet 10 and are replaced by four facets (descending waist booth section 14, two lower star half ones 15 and lower star booth section 16).

As for example seen in Fig. 5, these four facets contact with each other on more out-of-plane being positioned at the bright 1 time main facet 10 of formula cut of corresponding ideal.These points should be selected like this, make according to the diamond 11 of cut of the present invention and are essentially convex polyhedron.Fig. 6 illustrates the top view of diamond in Fig. 5.Fig. 7 illustrates the bottom view of diamond in Fig. 5.Fig. 8 is the part cross section along Fig. 6 center line VIII-VIII.

By table top 5 centers and by booth section 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 accompanying drawing.

Table 2

Wherein, bizet turnover (crown break) (facet) is the table top turnover facet (table breakfacet) 12 in accompanying drawing 5-8.Waist half one (girdle halves) (facet) is the facet that the label in accompanying drawing 5-7 is 8.

Light is in the scattering of bizet turning point and being refracted to diamond.The light of refraction is fallen extra 24 facets of booth section 3, and excites back star-like pattern to table top.Typically, darker than the booth section of desirable bright formula cut 1 according to the booth section 3 of the diamond 11 of cut of the present invention, this makes the diamond of such cut more for a long time light be remained in diamond.Schematically show this " tube effect " in Fig. 9.

Can have and chisel the waist 4 that facet is arranged or do not there is this waist according to the diamond 11 of cut of the present invention.Either way be regarded as falling into the replacement scheme of the present invention's protection.Accordingly, in the situation that chisel the waist 4 that facet is arranged, the quantity of waist facet determines according to the state of the art of this area.

In another interchangeable form, can there is the vertex (vertices) facet of the bottom of adding booth section 3 to according to the diamond 11 of cut of the present invention.

The method that to the invention still further relates to the diamond cut be such shape, described shape has and meets the size that provides in 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

1. the diamond of a cut (11), wherein said diamond is convex polyhedron and has eight nineteen facets, than bright many 32 facets of formula cut (1) of traditional ideal, each in eight kite facets (6) of the diamond (1) by the bright formula cut of the ideal by traditional is replaced by two triangle facets---table top turnover facet (12) and waist turnover facet (13) and in eight extra facets of the upper interpolation of bizet (2), described two triangle facets have public edge---be positioned at the waist turnover on the plane parallel with table top (5), and four facets---the lower waist booth section (14) that each under eight by the bright formula cut (1) of the ideal by traditional in main facet (10) contacts with each other on being replaced by one point, two lower star half ones (15) and lower star booth section (16) and add other 24 facets in described 32 extra facets in booth section (3), described point is engagement point, and booth section highly large 3% in the bright formula cut (1) of the corresponding traditional ideal of booth section aspect ratio.

2. the diamond of cut according to claim 1 (11), wherein said eight lower star booth section's facets (16) engage at vertex (vertices) or at the spike place of described booth section (3), to form the symmetry anise star when observe from bottom.

3. the diamond of cut according to claim 1 and 2 (11), wherein with respect to different size and the angle of waist diameter, follow the value provided in following table:

4. the diamond of cut according to claim 1 (11), wherein by described table top (5) center and be the axis of eightfold symmetry by described booth section's (3) spike or the axis by the vertex (vertices) center.

5. the diamond of cut according to claim 1 (11), wherein said waist (4) is not chiseled facet.

6. the diamond of cut according to claim 1 (11), wherein said waist (4) is chiseled facet.

7., wherein there is the vertex (vertices) facet in the diamond of cut according to claim 1 (11).