Lab Services

As a well-trained researcher and gemologist in the San Francisco Bay Area, we utilize cutting-edge technology and scientific equipment to offer professional, independent, and objective service for gemstone identification, grading and appraising. Our 22 years experience and expertise allows us to accurately identify a wide range of gemstones, jade (Fei Cui, Nephrite, etc.,), diamonds (natural diamond vs lab diamond), providing reliable results for all your jewelry identification needs.

Diamond

With diamond detector and diamond master stones, we can accurately identify both mined and lab-grown diamonds, determine the diamond’s 4Cs: Carat weight, Cut, Color, and Clarity.

Color Gemstones

Accurately identifying all kinds of color gemstones (ruby, sapphire, emeralad, etc): determining their mineral species, quality grade, any treatments, and distinguishing them from simulants

Fui Cui ( > Jadeite)

Raman and IR Spectra allow us to accurately identify the mineral composition of Fei Cui (a family name of Jadeite, Omphacite and Kosmochlor), the treatment (B+C Jade) and their color origin.

DALL·E 2024-09-04 23.19.03 - A detailed gold bar similar to the ones sold at Costco, featu

Metal Purity

We can accurately determine the purity and composition of precious metals (gold, silver, platinum, palladium, etc., ) in a completely nondestructive manner.