CVD Laboratory-Grown Diamond with Counterfeit GIA Inscription
A CVD laboratory-grown diamond with a fraudulent GIA inscription is submitted to the Antwerp lab.
Exquisite Opal Strand
Natural opal beads displaying vibrant play-of-color are strung together to create a remarkable necklace.
Melo Pearl Found in a Melo Shell
A beautiful melo pearl is accidentally served up for lunch within its host gastropod.
Transparent Rhodonite with Clarity Enhancement
A clarity-enhanced rhodonite stuns with its exceptional size, transparency, and vivid color.
Amphibole Mineral Inclusions in Mozambique Ruby
Amphibole, a collectors’ stone in its own right, is identified as an inclusion in a ruby from Mozambique.
Atypical Dyed Beryl
Methodical gemological testing in the New York laboratory unmasks a cleverly-dyed beryl imitating an emerald.
Chrysoberyl Inclusions in Flux-Grown Ruby
Imitation Moldavite
Thorough testing by Carlsbad gemologists reveals an artificial glass imitation posing as moldavite.