“Atypical Beads”: Variations of Two Types of Nuclei
Four atypical bead cultured pearls with variations on two types of nuclei are examined in the Mumbai laboratory.
A Gastropod Shell in a Unique Shell Blister
GIA’s Mumbai laboratory encounters a unique example of a shell blister encompassing a gastropod shell.
Treated Freshwater Non-Bead Cultured Pearls with an Antique Appearance
GIA’s Mumbai laboratory examines 12 freshwater pearls showing signs of aging.
Exceptionally Large Synthetic Rutile
The Carlsbad laboratory receives three large synthetic rutile brilliants, one of which is the largest encountered at GIA.
Heart-Shaped Golden South Sea Cultured Pearl
The remarkable use of an atypical bead nucleus to achieve the perfect heart shape suggests recent improvements in pearl culturing techniques.
Libyan Desert Glass Bangle Bracelet
The Hong Kong laboratory reports on Libyan Desert glass in the rare form of a bangle bracelet.
Purple Anhydrite
The Carlsbad laboratory encounters its first example of a transparent purple faceted single crystal anhydrite.
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