featured Research & News

Natural red and synthetic orange rutile
GEM News International

Natural Faceted Red Rutile

A dark red stone is revealed to be natural red rutile, the first faceted specimen seen in the Carlsbad lab.
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Industry Analysis

January Outlook: Rough Supplies Up, Prices Down

Soft prices and excess inventory of 2015 helped by holiday season sales. Plus: China retail report.
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Lab Note

Polished Freeform Topaz Imitating Diamond Rough

Material submitted as a rough diamond is revealed through gemological testing and analysis to be a near-colorless topaz.
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Exhibition Review

Glitterati: Portraits and Jewelry from Colonial Latin America

The fusion of old and new is a major theme of the exhibition and is expressed through materials, techniques, and design.
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Lab Notes

Unusual Graining Structure in Pink Diamond

A Very Light pink diamond showing a uniform plane of color intersecting with a cone of strain that fit perfectly into a colorless hole.
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