历史文献清单: 历史上试图合成钻石的经验
Suspended Crystal in Red Spinel
A crystal inclusion in red spinel displays rainbow colors under fiber-optic lighting.
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.
.jpg "YMAL GIA Ed")
