Research Article Search Results
More on Virtu Gem’s Ethical Supply Chain Practices
An update on Virtu Gem’s mission to improve artisanal mining and gem trading practices in Kenya, Malawi, and Zambia.
A Remarkable 16.71 ct Transparent Orange-Yellow Sodalite
A rare and exceptional example of sodalite is studied in the Bangkok laboratory.
Hollandite in Amethyst
A spectacular display of hollandite crystals is captured within an amethyst cabochon.
Unusual Inclusions in Natural Emerald from Chivor
Tubular three-phase inclusions are observed in a Colombian emerald.
Trapiche Garnet from Vietnam
A rare occurrence of 14 trapiche patterns is observed in a garnet sample from Vietnam.
A Unique Omphacite Jade Pendant
A carved jade pendant displaying both dark green omphacite and paragenetic yellow vesuvianite is examined.
Two Foraminifera-Like Objects Found in a Natural Saltwater Pearl
Examination of a brown nacreous pearl reveals a pair of foraminifera-like spheres.
Cross in Natural Diamond
DiamondView imaging revels a cross-shaped fluorescence pattern in a natural diamond.
Treated HPHT Laboratory-Grown Diamond with Dramatic Color Zoning
A Fancy Deep brownish orange treated HPHT-grown diamond exhibits multiple defect concentrations in various growth sectors.
Distinctive Feather in Diamond
A feather observed in a natural diamond resembles a large reptile.
Carbon Dioxide in a Brown Diamond
The Carlsbad lab examines a rare submission of a Fancy Dark brown diamond containing carbon dioxide.
