GB221690A - Improved method of cutting precious stones - Google Patents

Improved method of cutting precious stones

Info

Publication number
GB221690A
GB221690A GB2846723A GB2846723A GB221690A GB 221690 A GB221690 A GB 221690A GB 2846723 A GB2846723 A GB 2846723A GB 2846723 A GB2846723 A GB 2846723A GB 221690 A GB221690 A GB 221690A
Authority
GB
United Kingdom
Prior art keywords
facets
crown
stone
root
improved method
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
GB2846723A
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
Priority to GB2846723A priority Critical patent/GB221690A/en
Publication of GB221690A publication Critical patent/GB221690A/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

Abstract

221,690. Bulckens, F. Nov. 12, 1923. Gems.-The crown and root. of a diamond or other stone are so cut that each is provided with nine main facets, which may be further cut into subsidiary or half facets. The Figure shows one way of cutting the stone, the thicker lines indicating the facets on the crown and the thinner lines those on the root. In this case, there are on the. crown nine main facets 2 at the angles of three equilateral triangles, with eighteen sub-facets 3 and nine sub-facets 5. while on the root there are nine main facets 6 and eighteen sub-facets 7, varying in height according to the depth of the stone. Other examples of diamonds and brilliants cut according to the invention are described and illustrated.
GB2846723A 1923-11-12 1923-11-12 Improved method of cutting precious stones Expired GB221690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2846723A GB221690A (en) 1923-11-12 1923-11-12 Improved method of cutting precious stones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2846723A GB221690A (en) 1923-11-12 1923-11-12 Improved method of cutting precious stones

Publications (1)

Publication Number Publication Date
GB221690A true GB221690A (en) 1924-09-18

Family

ID=10276082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2846723A Expired GB221690A (en) 1923-11-12 1923-11-12 Improved method of cutting precious stones

Country Status (1)

Country Link
GB (1) GB221690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007048331A1 (en) * 2005-10-28 2007-05-03 Bingzheng Li A method of adjusting colors of trapeziform and triangular stones
US9452906B2 (en) 2013-12-19 2016-09-27 Dietze & Schell Maschinenfabrik Gmbh & Co. Kg Winding device for winding up at least one material to be wound onto at least one exchangeable tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007048331A1 (en) * 2005-10-28 2007-05-03 Bingzheng Li A method of adjusting colors of trapeziform and triangular stones
US9452906B2 (en) 2013-12-19 2016-09-27 Dietze & Schell Maschinenfabrik Gmbh & Co. Kg Winding device for winding up at least one material to be wound onto at least one exchangeable tube

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