A rare and exceptional example of sodalite is studied in the Bangkok laboratory.

Examination of a brown nacreous pearl reveals a pair of foraminifera-like spheres.

A Fancy Deep brownish orange treated HPHT-grown diamond exhibits multiple defect concentrations in various growth sectors.

The Carlsbad lab examines a rare submission of a Fancy Dark brown diamond containing carbon dioxide.

A tapered baguette-cut diamond exhibits two major color zones.