featured Research & News

Lab Note

Lab Finds HPHT Synthetic Melee in Pendant

One high-quality synthetic melee – in a design of 118 diamonds – is found in a high-end pendant.
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Gem News International

A Portable, Paper Microscope for Gems?

Gemologist tests a portable microscope created by a team of Stanford University graduate students.
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Lab Note

A Natural 16.64 Carat Quahog Pearl

This pearl’s size, surface, luster, shape and color make it an exceptionally fine and rare example.
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Tucson 2015

Oregon
Sunstone

An update on the demand and market of Oregon sunstone and plans for a sunstone miners’ association.
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Tucson 2015

Miniature Examples of Gem Artistry

A young cutter displays his most recent creations of tourmaline, citrine and blue topaz.
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