WO2006117406A3 - Identifying a gemstone - Google Patents

Identifying a gemstone Download PDF

Info

Publication number
WO2006117406A3
WO2006117406A3 PCT/EP2006/062104 EP2006062104W WO2006117406A3 WO 2006117406 A3 WO2006117406 A3 WO 2006117406A3 EP 2006062104 W EP2006062104 W EP 2006062104W WO 2006117406 A3 WO2006117406 A3 WO 2006117406A3
Authority
WO
WIPO (PCT)
Prior art keywords
gemstone
table facet
length
measure
identifying
Prior art date
Application number
PCT/EP2006/062104
Other languages
French (fr)
Other versions
WO2006117406A2 (en
Inventor
Suranjith Gunasekara
Original Assignee
Holdings Co Ltd Fab
Suranjith Gunasekara
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 Holdings Co Ltd Fab, Suranjith Gunasekara filed Critical Holdings Co Ltd Fab
Publication of WO2006117406A2 publication Critical patent/WO2006117406A2/en
Publication of WO2006117406A3 publication Critical patent/WO2006117406A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/87—Investigating jewels

Abstract

Identification Apparatus (31, 32) for providing identification information relating to a gemstone (10), is arranged to obtain a measurement in absolute or relative terms of the length of each of plural sides of a table facet (14) of a gemstone, and automatically to use the plural measurements to provide a fingerprint for the gemstone. The fingerprint includes a measure of the length of a given side of the table facet as a proportion of the total of the lengths of all the sides of the table facet and a measure of the length of each side of the table facet.
PCT/EP2006/062104 2005-05-05 2006-05-05 Identifying a gemstone WO2006117406A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0509207.7 2005-05-05
GB0509207A GB0509207D0 (en) 2005-05-05 2005-05-05 Identifying a gemstone

Publications (2)

Publication Number Publication Date
WO2006117406A2 WO2006117406A2 (en) 2006-11-09
WO2006117406A3 true WO2006117406A3 (en) 2007-01-18

Family

ID=34685147

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/062104 WO2006117406A2 (en) 2005-05-05 2006-05-05 Identifying a gemstone

Country Status (2)

Country Link
GB (1) GB0509207D0 (en)
WO (1) WO2006117406A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3254089A4 (en) * 2015-02-05 2019-07-17 RGV Group LLC Systems and methods for gemstone identification
EP3388822B1 (en) 2017-04-14 2023-09-27 Inexto Sa Method for computing a unique identifier for a gemstone having facets
US11428641B2 (en) * 2017-12-22 2022-08-30 Sahajanand Technologies Private Limited Gemstone verification
GB2584897B (en) * 2019-06-20 2022-09-14 De Beers Uk Ltd Re-identification of rough gemstones

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5510891A (en) * 1995-01-23 1996-04-23 Frangie; Nehme Object characteristic direct measuring device utilizing a magnetically attracted lover base and an upper frame having a scaled lens therein
US6020954A (en) * 1997-12-18 2000-02-01 Imagestatistics, Inc. Method and associated apparatus for the standardized grading of gemstones
GB2358541A (en) * 1999-10-29 2001-07-25 Diamond And Jewelry 4 U Ltd Gemstone image capture system
US20040246464A1 (en) * 2003-06-06 2004-12-09 Sivovolenko Sergey Borisovich Method and apparatus for examining a diamond

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5510891A (en) * 1995-01-23 1996-04-23 Frangie; Nehme Object characteristic direct measuring device utilizing a magnetically attracted lover base and an upper frame having a scaled lens therein
US6020954A (en) * 1997-12-18 2000-02-01 Imagestatistics, Inc. Method and associated apparatus for the standardized grading of gemstones
GB2358541A (en) * 1999-10-29 2001-07-25 Diamond And Jewelry 4 U Ltd Gemstone image capture system
US20040246464A1 (en) * 2003-06-06 2004-12-09 Sivovolenko Sergey Borisovich Method and apparatus for examining a diamond

Also Published As

Publication number Publication date
WO2006117406A2 (en) 2006-11-09
GB0509207D0 (en) 2005-06-15

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