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.
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.
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.
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.
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.