WO2005070025A2 - Taille de diamant - Google Patents

Taille de diamant Download PDF

Info

Publication number
WO2005070025A2
WO2005070025A2 PCT/US2005/002403 US2005002403W WO2005070025A2 WO 2005070025 A2 WO2005070025 A2 WO 2005070025A2 US 2005002403 W US2005002403 W US 2005002403W WO 2005070025 A2 WO2005070025 A2 WO 2005070025A2
Authority
WO
WIPO (PCT)
Prior art keywords
girdle
gemstone
facets
cut
pavilion
Prior art date
Application number
PCT/US2005/002403
Other languages
English (en)
Other versions
WO2005070025A3 (fr
Inventor
Toros Kejejian
Original Assignee
Tycoon Jewelry, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tycoon Jewelry, Inc. filed Critical Tycoon Jewelry, Inc.
Publication of WO2005070025A2 publication Critical patent/WO2005070025A2/fr
Publication of WO2005070025A3 publication Critical patent/WO2005070025A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/001—Faceting gems

Definitions

  • the present invention is directed towards a gemstone cut. Specifically, the present invention is directed towards a mixed cut gemstone with a brilliant cut crown, a girdle and a step
  • the crown in the present invention contains a flat table and a number of corner and upper girdle facets.
  • the pavilion contains eight rib lines subdividing the pavilion into eight
  • U.S. Patent No. 5,970,744 to Greeff discloses a mixed cut gemstone having step cut crown with two steps and a flat table, a girdle and a pavilion. The crown and the pavilion are
  • each pavilion side has
  • the gemstone is a combination of a step cut crown and a brilliant cut pavilion.
  • the present invention is substantially different from this prior art. The present
  • the invention has a brilliant cut crown and a step cut pavilion.
  • the prior art contains steps in its table, whereas the present invention has a brilliant cut crown without any such steps.
  • the pavilion of the prior art is brilliant cut without any steps, whereas the present invention contains
  • U.S. Patent No. 4,020,649 to Grossbard discloses a step cut stone with polygonal shaped
  • the crown contains at least table and girdle breaks, where some of the breaks contain triangular shaped facets.
  • the present invention contains a step cut pavilion
  • the present invention contains greater number of steps in its
  • Each comer and side contains at least four facets, including lower girdle facets and bezel stars.
  • the present invention is a mixed cut gemstone with brilliant cut crown and a step cut pavilion.
  • the present invention's crown does not contain any steps and its pavilion does not contain a
  • U.S. Patent No. Des.391,518 to Slowinski et al. discloses a mixed cut gemstone with a square shaped crown having a polygon shaped table, table and girdle breaks with multiple facets
  • the gemstone has brilliant cut pavilion with rib lines running from the girdle to the culet point.
  • the pavilion have several facets, including lower girdle facets and bezel star facets.
  • the present invention has a brilliant cut crown and a step cut pavilion, which significantly differs from the '
  • Russian Patent No. SU 1743563-A1 discloses a mixed cut diamond with trapezoidal
  • the present invention substantially differs because of
  • the present invention is directed toward a gemstone cut.
  • the main object of the present invention is to create a mixed cut gemstone with a brilliant
  • FIG. 1 is a view of the top of the gemstone cut showing a crown with a flat table
  • FIG. 2 is a view of the bottom of the gemstone cut showing pavilion step cuts and a line
  • FIG. 3 is a side view of the gemstone cut from the long side of the gemstone.
  • FIG. 4 is a side view of the gemstone cut from the shorter side of the gemstone.
  • FIG. 5 is a perspective view of another embodiment of invention where the gemstone is
  • FIG. 6 is perspective view of the bottom of the gemstone cut of FIG. 5 showing pavilion step cuts and a point culet.
  • FIG. 7 is a side view of the gemstone cut of FIG. 5.
  • FIG. 8 is an alternative top view of the gemstone cut of FIG. 5.
  • FIG. 9 is an alternative top view of the gemstone cut of FIG. 6.
  • the present relates to a new gemstone cut. Specifically the present invention is directed
  • a step cut while lacking dispersion capacities of the brilliant cut, achieves elegant and
  • the step cut can be distinguished by long facets, called “steps", arranged parallel to the girdle. On the bottom the number of facets is undeterminable and the crown usually has two steps.
  • the brilliant cut has no steps and achieves excellent brilliancy and
  • Dispersion is separation of light into seven wavelengths when light passes through the surface of the gemstone. Dispersion cannot be seen when the surfaces (i.e. facets), through which light travels, are parallel to each others, because the light rays converge, when they pass
  • Brilliancy refers to the brightness of the stone, thus, relating to the surface
  • FIGS. 1 through 4 a gemstone 10 is shown from the top.
  • the gemstone 10 is depicted with a diamond shaped crown 12 with a flat
  • the table 16 is separated from the comer facets 20 using the table break lines 22. Lines
  • the corner facets 20 are separated from the upper girdle facets 14 and
  • the comer facets 20 are four sided polygons. Two of the sides
  • the upper girdle facets 18 form about 40° to 50° angles with the girdle plane and the
  • upper girdle facets 14 form about 45° to 55° angles with the same plane.
  • the comer facets 20 from angles of about , with the girdle plane.
  • One set of comer angles 50 of table 16 are
  • the gemstone cut 10 is shown from the bottom.
  • the gemstone cut 10 has a pavilion 40, step cuts 36 and a lower girdle facet 34.
  • the steps are almost equal in width
  • the gemstone cut 10 has a culet line 30.
  • the steps 36 and the lower girdle 34 form
  • the girdle 50 has a depth of about l/20th the length of the girdle 50.
  • the depth of the crown 12 is about l/lOth of the length of the girdle 50 and the depth of the pavilion 40 is approximately l/4th of the length of the girdle.
  • the angle between that the longer sides of the pavilion 40, and the lower comer facets 46 is approximately 30°.
  • the lower comer facets 46 are truncated triangles (frustums) 56 and 57 with
  • the innermost corner facet 58 being a triangle.
  • the gemstone 11 is shown with a crown 9 having a square shape.
  • a flat table 13 also in a shape of a square, four comer facets 15 in the
  • facets are equal in area.
  • the four upper girdle facets which are triangles, are equivalent in area.
  • FIG. 6 depicts a bottom view of the gemstone 11 having a pavilion 41 having step cut facets 37. All of the facets having step cut lines,.
  • the pavilion 41 has a point culet 31 where rib lines 33 converge.
  • the lower corner facets which touches the girdle 41 and the comer facet below that
  • Facet 47 is at an angle of degrees with respect to the girdle facet 48 is at an angle of degrees with respect to the girdle and facet is at an angle of degrees with respect to
  • Fig.. 8 and Fig. 9 shows alternative tops for the gemstone of Fig. 1 and 5 with the
  • crown facets 147 and 149 which are rectangular in shape and are
  • the gemstones that may be used by the present invention are conventionally known
  • the gemstone cut provides for the hybrid cut that allows for superior coefficients of dispersion, scintillation and brilliancy.
  • the brilliant cut crown allows for superior dispersion of light.
  • the crown it bends several times after reflecting of inner surfaces of the facets. Meanwhile, the step cuts of the pavilion provide parallel incoming and outgoing rays of light, making the

Landscapes

  • Adornments (AREA)

Abstract

L'invention concerne une gemme mélangée présentant une couronne brillante taillée, un feuilletis et un pavillon taillés en degrés. Le pavillon taillé en degré contient huit lignes formant nervures s'étendant du feuilletis à une colette, pouvant être constitué d'une ligne ou d'un point. Ces lignes formant nervures sous-divisent le pavillon en huit côtés. Le pavillon contient trois degrés, qui ajoutent un aspect élégant et classique à la pierre. La couronne contient une table plate formant un diamant, quatre halefis et quatre facettes de feuilletis supérieures, ce qui permet de créer des facteurs supérieurs de dispersion, de brillance et de scintillement. La table est légèrement surélevée en raison des angles que forment les quatre halefis et les facettes de feuilletis supérieures avec le feuilletis.
PCT/US2005/002403 2004-01-23 2005-01-18 Taille de diamant WO2005070025A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/764,071 2004-01-23
US10/764,071 US20050160766A1 (en) 2004-01-23 2004-01-23 Diamond cut

Publications (2)

Publication Number Publication Date
WO2005070025A2 true WO2005070025A2 (fr) 2005-08-04
WO2005070025A3 WO2005070025A3 (fr) 2007-03-15

Family

ID=34795201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/002403 WO2005070025A2 (fr) 2004-01-23 2005-01-18 Taille de diamant

Country Status (2)

Country Link
US (1) US20050160766A1 (fr)
WO (1) WO2005070025A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107307526A (zh) * 2017-06-26 2017-11-03 湖北鄂信钻石科技股份有限公司 一种正八边形塔状钻石的加工方法
CN107997315A (zh) * 2017-12-29 2018-05-08 李奇 具有心形形状效果的钻石亭部的加工方法及其钻石

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120047948A1 (en) * 2010-08-31 2012-03-01 Nirav Modi Multifaceted gemstones with connecting link
US9398791B1 (en) * 2015-01-26 2016-07-26 Ecna, Llc Diamond cuts providing increased light amplification
USD766771S1 (en) 2015-07-01 2016-09-20 Tycoon Jewelry, Inc. Diamond cut

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US138314A (en) * 1873-04-29 Improvement in doublet stones
US4555916A (en) * 1982-07-20 1985-12-03 Henry Grossbard Step-cut stone which has been brilliantized
USD445718S1 (en) * 2000-02-11 2001-07-31 Tycoon Jewelry, Inc. Diamond cut
USD446152S1 (en) * 2000-02-15 2001-08-07 Tycoon Jewelry, Inc. Diamond cut
US6449985B1 (en) * 2000-09-14 2002-09-17 Tycoon Diamond cut
USD490742S1 (en) * 2003-07-21 2004-06-01 Tycoon Diamond cut
USD499981S1 (en) * 2003-03-05 2004-12-21 My Diamond Place Ltd. Diamond
USD501421S1 (en) * 2003-05-28 2005-02-01 Aba Diamond Corporation Cut diamond
USD501422S1 (en) * 2003-10-09 2005-02-01 Dynamic Diamond Corp. Gem pavilion

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US59299A (en) * 1866-10-30 Improved mop-head
US4020649A (en) * 1976-05-27 1977-05-03 Henry Grossbard Brilliantized step cut diamond
USD251659S (en) * 1976-11-01 1979-04-24 Henry Grossbard Diamond
USD391518S (en) * 1996-01-23 1998-03-03 Christopher Slowinski Gemstone
US5970744A (en) * 1998-12-01 1999-10-26 Tiffany And Company Cut cornered square mixed-cut gemstone
USD453007S1 (en) * 2000-05-26 2002-01-22 Koninklijke Asscher Diamant, Maatschappij B.V. Diamond
USD465431S1 (en) * 2001-06-19 2002-11-12 Ami Kanner Cut diamond
USD499982S1 (en) * 2003-10-09 2004-12-21 Dynamic Diamond Corp. Gem crown
USD502666S1 (en) * 2004-02-13 2005-03-08 Tycoon Cut, Inc. Diamond cut
USD524682S1 (en) * 2005-02-07 2006-07-11 M. Fabrikant & Sons, Ltd. Diamond

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US138314A (en) * 1873-04-29 Improvement in doublet stones
US4555916A (en) * 1982-07-20 1985-12-03 Henry Grossbard Step-cut stone which has been brilliantized
USD445718S1 (en) * 2000-02-11 2001-07-31 Tycoon Jewelry, Inc. Diamond cut
USD446152S1 (en) * 2000-02-15 2001-08-07 Tycoon Jewelry, Inc. Diamond cut
US6449985B1 (en) * 2000-09-14 2002-09-17 Tycoon Diamond cut
USD499981S1 (en) * 2003-03-05 2004-12-21 My Diamond Place Ltd. Diamond
USD501421S1 (en) * 2003-05-28 2005-02-01 Aba Diamond Corporation Cut diamond
USD490742S1 (en) * 2003-07-21 2004-06-01 Tycoon Diamond cut
USD501422S1 (en) * 2003-10-09 2005-02-01 Dynamic Diamond Corp. Gem pavilion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107307526A (zh) * 2017-06-26 2017-11-03 湖北鄂信钻石科技股份有限公司 一种正八边形塔状钻石的加工方法
CN107997315A (zh) * 2017-12-29 2018-05-08 李奇 具有心形形状效果的钻石亭部的加工方法及其钻石

Also Published As

Publication number Publication date
WO2005070025A3 (fr) 2007-03-15
US20050160766A1 (en) 2005-07-28

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