Jewelry Glossary Project Survey
Reinvesting in Cartagena: Jewelry School of the Caribbean
Moonstone Jewelry
The adularescent gem moonstone was prominently featured in this year’s Tucson shows.
Sapphires from Colombia
Unheated material from a sapphire deposit in southern Colombia is examined in GIA’s Carlsbad lab.
Unique Orange Sapphire with Golden Sheen Effect Reportedly from Kenya
Fancy Deep Brown-Orange CVD Synthetic Diamond
Unusual Orange Pyrope-Spessartine-Grossular Garnet
A garnet proves to have a much higher grossular component than initially expected.
Six-Rayed Star in Sapphire from Myanmar
Faint Green HPHT Synthetic Diamonds
Faint green HPHT synthetic diamonds recently submitted to the Carlsbad lab owe their color to high concentrations of nickel.
Freshwater Bead-Cultured Pearls with Multiple Features of Interest
GIA’s Hong Kong laboratory examines a freshwater bead-cultured pearl necklace possessing several interesting features.
Paraíba-Like Synthetic Sapphire
Two flame-fusion synthetic sapphires with a Paraíba-like color are examined at GIA’s Carlsbad lab.
Fourth International Diamond School
A report from the fourth International Diamond School, held in January 2018 in Brixen-Bressanone, Italy.
Freshwater Natural Pearls from the Concho River, Texas
Examination shows that a diamond was subjected to a multi-step process in order to introduce a blue color.
Irradiated and Annealed Blue Type Ia Diamond
Examination shows that a diamond was subjected to a multi-step process in order to introduce a blue color.
Jonathan Muyal Named Gem-A's Photographer of the Year
Carlsbad-based G&G contributor takes top honors in Gem-A's annual photography competition.
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