Review of Taffin: The Jewelry of James de Givenchy, by James Taffin de Givenchy, Tobias Meyere, and Hamilton South.

A quartz cabochon hosts an unusual rose-shaped hematite inclusion.

Details the process used by Wiede’s Carbidwerk to produce star synthetic corundum from the mid-1950s through the 1970s.

Current activity and production at various sites around Mozambique are reported.

Summarizes statistical data and distinctive features of several thousand gem-quality HPHT synthetic diamonds examined by GIA from 2007 through 2016.

Discusses the mineralogical composition and provenance of this spotted decorative gemstone.

Examines 85 saltwater natural pearls, reportedly harvested from the Caribbean islands off the coast of Venezuela during the early 16th century, to determine their age.

Garnets with a unique color and a previously unreported chemical composition are examined at GIA’s Carlsbad lab.

A firsthand look at Colombia’s emerald mines and the cutting and trading industry in Bogotá.

Compares PL spectroscopy data of 48 emerald samples from three countries to evaluate the usefulness of the technique in geographic origin determination.

A fluorite specimen hosts two eye-visible, prominent white barite inclusions.

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