Diamond clarity measurement process and system

US11016033B2 · kind B2 · utility

Assignee

• GOLDWAY TECHNOLOGY LIMITED

Inventors

• Ka Wing Cheng · Ma On Shan, CN
• Kin Wing Wong · Ma On Shan, CN
• Kong CHAN · Tsuen Wan, CN
• Juan CHENG · Tsuen Wan, CN
• Wing Chi TANG · Kowloon, CN
• Koon Chung HUI · Ma On Shan, CN

Key dates

• Filing date: Dec 28, 2018
• Grant date: May 25, 2021
• Expiry date: Dec 28, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30108
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A process operable using a computerized system (300) grades the clarity of a diamond (315, 400) as a function of internal defects within its body (315, 400). The computerized system (300) includes an optical image acquisition device (310), a processor module (320) and an output module (340) operably interconnected together. The process includes the steps of (i) acquiring via an optical image acquisition device (310) a plurality of top view images of a diamond (315, 400); (ii) in a processor module (320), detecting defects within the body of the diamond (315, 400); and (iii) from an output module (340), providing a signal indicative of the clarity grade assigned in (ii).