Patent · US Active

Device and method for screening gemstones

US10684230B2 · kind B2 · utility

8Cited by

2References

22Claims

0Family size

Assignee

Gemological Institute of America, Inc. (GIA) · US

Inventors

Wuyi Wang · Edison, US
Tsung-Han Tsai · Taichung, TW

Key dates

Filing date	Nov 20, 2017
Grant date	Jun 16, 2020
Priority date	—
Expiry date	Nov 20, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/6484
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed herein are devices and methods for screening gemstones (e.g., diamonds). In particular, the disclosed method and system can efficiently and accurately identify and distinguish genuine earth-mined gemstones (e.g., diamond) from synthetic and treated gemstones or gemstone simulants.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.