Research Article Search Results
Reconstructed Specimens and the Rise of Deceptive Practices in Pakistan
A report on the increase of artificially assembled or altered specimens circulating in Pakistan’s local gem markets.
Cat’s-Eye Boulder Opal
A precious cat’s-eye boulder opal from Australia is examined in the Carlsbad laboratory.
A Rare Friedelite
The Carlsbad laboratory reports on a rare submission of orangy red translucent friedelite.
Fuchsite-Bearing Dolomite Aggregate as a New Jadeite Imitation
A snuff bottle submitted to TULAB as jadeite jade is identified as a dolomite aggregate with fuchsite.
Fingerprint Pattern on a “Hammered” Pearl’s Surface
Spiral patterns of nacre platelets observed on the surface of a non-bead cultured pearl are reminiscent of fingerprints.
Assembled Black Imitation Pearl
An undrilled black bead is identified as an assembled imitation pearl made from shell fragments.
New Red Garnet Production from Northern Vietnam
GIA studies a selection of rough and cut garnet from a new source in northern Vietnam.
Fracture-Filled Diamonds Detected in Mounted Jewelry
The Mumbai laboratory reports on a jewelry submission containing fracture-filled diamonds.
“Worms” in Opal
Near-colorless heulandite crystals in an Ethiopian opal resemble the segmented bodies of worms.
Converge 2025 GIA Hands-On Sessions
GIA offered a variety of hands-on sessions for attendees during the Converge conference.
Blooming Bouquet: Thin Films in Russian Emerald
Colorful thin film inclusions are captured within a Russian emerald carving.
