Two Antique Mughal Spectacles with Gemstone Lenses
Unique diamond- and emerald-lensed spectacles from the Mughal Empire were tested in GIA’s New York laboratory.
Color-Zoned Cat’s-Eye Chrysoberyl
The Tokyo lab recently identified a unique localized distribution of cloud-like inclusions in a chrysoberyl.
Star Rhodochrosite
The Carlsbad lab received a rhodochrosite cabochon featuring rhomboid-shaped fluid inclusions, causing a four-rayed star.
Vaterite Found on a Strand of Freshwater Cultured Pearls
An unusual formation of vaterite was identified on the surface of numerous freshwater cultured pearls throughout a single strand.
Unique Circuit Board–Like Surface Pattern on Tourmaline
Microscopic observation by the Tokyo lab revealed a mysterious networked pattern, resembling that of a circuit board, covering the overall surface of a blue-green tourmaline.
Exceptionally Large and Well-Saturated Orange Sapphire
A notable 31.06 ct well-saturated orange sapphire was recently submitted to the Carlsbad laboratory.
Flux-Induced Fingerprints in Flame-Fusion Synthetic Sapphire
The Carlsbad laboratory received a lab-grown sapphire featuring a flux fingerprint similar to those found in natural sapphire.
Novelty Cut Diamond Faceted as Iconic Apple Logo
A novelty cut Fancy yellow diamond submitted to the Carlsbad laboratory bears a striking resemblance to the iconic Apple Inc. logo.
Pink Euclase
The Tokyo lab recently observed its first example of euclase with an orangy pink color, possibly caused by manganese.
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