CA2157469C - Methode pour distinguer un diamant naturel d'un diamant synthetique - Google Patents

Methode pour distinguer un diamant naturel d'un diamant synthetique Download PDF

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Publication number
CA2157469C
CA2157469C CA002157469A CA2157469A CA2157469C CA 2157469 C CA2157469 C CA 2157469C CA 002157469 A CA002157469 A CA 002157469A CA 2157469 A CA2157469 A CA 2157469A CA 2157469 C CA2157469 C CA 2157469C
Authority
CA
Canada
Prior art keywords
diamond
ultraviolet radiation
luminescence
irradiating
synthetic
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 - Lifetime
Application number
CA002157469A
Other languages
English (en)
Other versions
CA2157469A1 (fr
Inventor
Paul Martyn Spear
Christopher Mark Welbourn
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.)
De Beers Centenary AG
Original Assignee
Gersan Ets
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
Priority claimed from GB939304506A external-priority patent/GB9304506D0/en
Priority claimed from GB939304505A external-priority patent/GB9304505D0/en
Application filed by Gersan Ets filed Critical Gersan Ets
Priority claimed from PCT/GB1994/000415 external-priority patent/WO1994020837A1/fr
Publication of CA2157469A1 publication Critical patent/CA2157469A1/fr
Application granted granted Critical
Publication of CA2157469C publication Critical patent/CA2157469C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
CA002157469A 1993-03-05 1994-03-04 Methode pour distinguer un diamant naturel d'un diamant synthetique Expired - Lifetime CA2157469C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB939304506A GB9304506D0 (en) 1993-03-05 1993-03-05 Distinguishing natural from synthetic diamond
GB939304505A GB9304505D0 (en) 1993-03-05 1993-03-05 Distinguishing natural from synthetic diamond
GB9304506.0 1993-03-05
GB9304505.2 1993-03-05
PCT/GB1994/000415 WO1994020837A1 (fr) 1993-03-05 1994-03-04 Procede permettant de distinguer un diamant naturel d'un diamant de synthese

Publications (2)

Publication Number Publication Date
CA2157469A1 CA2157469A1 (fr) 1994-09-15
CA2157469C true CA2157469C (fr) 2005-10-25

Family

ID=35311619

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002157469A Expired - Lifetime CA2157469C (fr) 1993-03-05 1994-03-04 Methode pour distinguer un diamant naturel d'un diamant synthetique

Country Status (1)

Country Link
CA (1) CA2157469C (fr)

Also Published As

Publication number Publication date
CA2157469A1 (fr) 1994-09-15

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Effective date: 20140304