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Pearl
Perfect shining spheres. Lustrous baroque forms. Seductive strands, warm to the touch. Pearls are simply and purely organic.
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An Environmental, Social, and Governance Assessment of Marine Pearl Farming
A look at the sustainability challenges and opportunities facing marine pearl farming using an Australian pearl farm as a case study.
Shell Blister on an Isognomon isognomon Shell
An Isognomon isognomon shell with a blister feature is examined at GIA in Mumbai.
Exhibition Review: Lustre: Pearling and Australia
A review of Lustre: Pearling and Australia at the Immigration Museum in Melbourne.
Abstracts; Fall 1991
This article, from the Fall 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
Abstracts; Winter 1991
This article, from the Winter 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
Natural Freshwater “Fish” Pearl
A uniquely shaped freshwater pearl is examined in the New York lab.
From Single Source to Global Free Market: The Transformation of the Cultured Pearl Industry
Over the past 15 years a combination of market forces, environmental events, and scientific research has radically changed the cultured pearl industry.
Polynesian Black Pearls
Historically, natural black pearls have been one of the rarest and most exotic of gem materials.
Atypical “Box Bead” Cultured Pearls
GIA’s Bangkok laboratory examines five “box bead” cultured pearls with nuclei fashioned from saltwater shell.
Freshwater Natural Pearls from the Concho River, Texas
Examination shows that a diamond was subjected to a multi-step process in order to introduce a blue color.
Challenges in Identifying Drilled Keshi Pearls
GIA’s Mumbai laboratory studies a lot consisting of 40 pearls to aid in distinguishing natural from non-bead cultured pearls.
“Lily Pad” Structure in an Orangy Yellow Pearl
An orangy yellow pearl featuring a unique acicular feature is examined at the Mumbai laboratory.
