Precise instruments detect dazzling raw stones

Raw and fashioned stones arrive with stories. The laboratory answers with instruments: refractive index, specific gravity, magnification, spectroscopy where needed, and a written record that trade professionals can check later.

Precision tools do not replace gemologists. They narrow the options so species, variety and treatments can be described the same way from bench to invoice. That consistency is why GRA reports are used as a passport for gemstones in international trade.

Each finished report carries a certificate number. Enter it on this site under Certificate to open the matching record. Instruments detect; the printed number lets the market verify.