Invention Grant
- Patent Title: Luminescence measurements in diamond
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Application No.: US16107503Application Date: 2018-08-21
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Publication No.: US10345245B2Publication Date: 2019-07-09
- Inventor: James Gordon Charters Smith , Colin McGuinness , David Fisher
- Applicant: De Beers UK Ltd
- Applicant Address: GB London
- Assignee: De Beers UK Ltd
- Current Assignee: De Beers UK Ltd
- Current Assignee Address: GB London
- Agency: Renner Otto Boisselle & Sklar, LLP
- Priority: GB1511461.4 20150630
- Main IPC: G01N21/87
- IPC: G01N21/87 ; G01N21/64
Abstract:
A method of and an apparatus for providing an indicator for a diamond as to whether it is natural by testing for the presence or absence of one or more specific markers in the luminescence properties of the diamond, These markers are characterized by luminescence decay time and luminescence wavelength.
Public/Granted literature
- US20190003980A1 LUMINESCENCE MEASUREMENTS IN DIAMOND Public/Granted day:2019-01-03
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