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GB1306854A - Process of cutting a diamond or other precious or semi-precious stone - Google Patents

Process of cutting a diamond or other precious or semi-precious stone

Info

Publication number
GB1306854A
GB1306854A GB2549770A GB2549770A GB1306854A GB 1306854 A GB1306854 A GB 1306854A GB 2549770 A GB2549770 A GB 2549770A GB 2549770 A GB2549770 A GB 2549770A GB 1306854 A GB1306854 A GB 1306854A
Authority
GB
United Kingdom
Prior art keywords
facets
precious
girdle
diamond
cutting
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2549770A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1306854A publication Critical patent/GB1306854A/en
Expired legal-status Critical Current

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

Landscapes

  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Adornments (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

1306854 Gems J HUISMAN and H HUISMAN 27 May 1970 [10 June 1969] 25497/70 Heading A3H [Also in Division B3] A process for cutting a diamond to have seventy-two facets in its pavilion side (excluding the culet facet 10) is to divide the pavilion into four equal facets which are then bifurcated to form eight triangular facets. These facets are then each trifurcated so that in each trio one facet is culet-adjoining while the remaining two facets 18 are girdle-adjoining. The girdle 15 is now polished to a 90‹ edge and further facets 30 are cut at each intersection of the girdle-adjoining facets 18. Triangular facets 40 are cut into these further facets and the girdle 15 is cut into a total of thirty-eight facets The finished gem is the subject of Specification 1094140. In a modification, the facets 30 are each further subdivided into two equal triangular facets to yield a gem with 88 facets in the pavilion side.
GB2549770A 1969-06-10 1970-05-27 Process of cutting a diamond or other precious or semi-precious stone Expired GB1306854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83197369A 1969-06-10 1969-06-10

Publications (1)

Publication Number Publication Date
GB1306854A true GB1306854A (en) 1973-02-14

Family

ID=25260333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2549770A Expired GB1306854A (en) 1969-06-10 1970-05-27 Process of cutting a diamond or other precious or semi-precious stone

Country Status (12)

Country Link
US (1) US3585764A (en)
AT (1) AT302092B (en)
BE (1) BE751146A (en)
CA (1) CA930553A (en)
CH (1) CH504276A (en)
DE (2) DE7019610U (en)
ES (1) ES380369A1 (en)
FR (1) FR2052468A5 (en)
GB (1) GB1306854A (en)
LU (1) LU61003A1 (en)
NL (1) NL7007322A (en)
ZA (1) ZA703524B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8215127B2 (en) 2008-01-09 2012-07-10 Hohoemi Brains, Inc. Diamond having two-stage pavilion
CN107080335A (en) * 2017-06-22 2017-08-22 贺承阳 Bottom, the processing method of diamond and its diamond of even number arrow diamond is presented in inside

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083352A (en) * 1977-01-28 1978-04-11 Dmetro Andrychuk Method for cutting ornamental transparent gemstones and products produced therefrom
US4372042A (en) * 1980-09-12 1983-02-08 Diamagnetics, Inc. Method for manufacturing diamond pick-up stylus
DE3202302C2 (en) * 1982-01-26 1984-01-26 Atelier-Juwel Georg Bunz, 7544 Dobel Cut gemstone, especially diamond
US5072549A (en) * 1986-09-22 1991-12-17 Harold Johnston Method of cutting gemstones and product
US5044123A (en) * 1990-03-22 1991-09-03 Douglas Hoffman Concave-convex faceting method and apparatus
US5437167A (en) * 1994-05-12 1995-08-01 Ambar; Betzalel Invisible setting for round diamond stone
US5462474A (en) * 1994-05-24 1995-10-31 Ronald W. Swager Method of facetting a gem
US5761929A (en) * 1996-09-12 1998-06-09 M. Fabrikant & Sons, Ltd. Facet cut structure for colored stones to enhance brilliance
DE19734036A1 (en) * 1997-08-06 1999-02-11 Helmut Buerger Process for determining a gemstone cut with high reflection, process for grinding a gemstone with high reflection and cut gemstone with high reflection
JP2000005993A (en) * 1998-06-17 2000-01-11 Hisatake Shudo Cutting method for diamond and proportion of diamond
US6422039B2 (en) * 2000-07-20 2002-07-23 D. Swarovski & Co. Gem
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
US6615611B1 (en) * 2000-09-26 2003-09-09 Michael Schachter High yield diamond
US6305193B1 (en) 2000-10-17 2001-10-23 Continental Jewelry (Usa) Inc. Gemstone
US6604382B2 (en) 2000-11-07 2003-08-12 Naotake Shuto New-cut diamond shape
US6668585B1 (en) * 2000-11-13 2003-12-30 David Markowitz Multi-faceted combined cut gemstones
US6401489B1 (en) 2001-02-12 2002-06-11 Continental Jewelry (Usa), Inc. Gemstone
US6698239B2 (en) 2001-02-23 2004-03-02 Samuel Aaron, Inc. Brilliant cut diamond
US6745596B2 (en) 2001-05-31 2004-06-08 Samuel Aaron, Inc. Princess cut diamond
US6591827B2 (en) * 2001-06-25 2003-07-15 Roy Fuchs Method for preparing a diamond
US6578380B1 (en) 2002-01-24 2003-06-17 Diaco Hexagonal brilliant cut diamond
US6761044B2 (en) 2002-04-11 2004-07-13 Premier Gem Corp Gemstone cut
JP3962695B2 (en) * 2003-02-13 2007-08-22 東京真珠株式会社 Diamond cutting method and diamond obtained thereby
US20050252241A1 (en) * 2004-05-13 2005-11-17 Israel Oster Diamond cut
JP2006218163A (en) * 2005-02-14 2006-08-24 Crane:Kk Jewel
JP2009142455A (en) * 2007-12-14 2009-07-02 Juho:Kk Diamond, diamond-shaped jewelry, and its cutting method
US8156760B2 (en) * 2008-06-16 2012-04-17 Albert Gad, Ltd. Gemstone cut
US20140013800A1 (en) * 2012-07-12 2014-01-16 Richline Group, Inc. Jewelry article with formed illusion plate
AT513466A1 (en) * 2012-10-12 2014-04-15 Swarovski D Kg Cut for gemstone
US9226554B2 (en) 2014-05-12 2016-01-05 Yoshihiko Kodama Circular cut diamond
US10405618B1 (en) * 2016-09-27 2019-09-10 Brian Steven Gavin Maximum light performance gemstone cutting technique
USD899294S1 (en) * 2018-07-16 2020-10-20 Diarough Nv Faceted gemstone

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US809531A (en) * 1904-05-03 1906-01-09 Ernest G H Schenck Diamond.
US2340659A (en) * 1943-05-05 1944-02-01 Goldstein Edward Precious stone
US2364031A (en) * 1944-07-21 1944-11-28 Patented Diamond Inc Brilliant type diamond and method of cutting the same
US2579666A (en) * 1948-03-20 1951-12-25 Jewel Smiths Inc Diamond cutting machine
US2654979A (en) * 1950-08-29 1953-10-13 Grodzinski Paul Method of and device for producing specifically oriented polished faces on diamonds
US3286486A (en) * 1964-01-10 1966-11-22 Huisman James Diamond with specially faceted pavilion
FR1391988A (en) * 1964-01-31 1965-03-12 Sirakian & Fils C Improvements to the assembly of two stones to give them the so-called <marquise> shape or

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8215127B2 (en) 2008-01-09 2012-07-10 Hohoemi Brains, Inc. Diamond having two-stage pavilion
CN107080335A (en) * 2017-06-22 2017-08-22 贺承阳 Bottom, the processing method of diamond and its diamond of even number arrow diamond is presented in inside

Also Published As

Publication number Publication date
ZA703524B (en) 1971-01-27
NL7007322A (en) 1970-12-14
US3585764A (en) 1971-06-22
ES380369A1 (en) 1973-04-16
BE751146A (en) 1970-11-03
CA930553A (en) 1973-07-24
DE2025689A1 (en) 1970-12-17
LU61003A1 (en) 1970-07-28
DE7019610U (en) 1971-04-08
FR2052468A5 (en) 1971-04-09
AT302092B (en) 1972-09-25
CH504276A (en) 1971-03-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee