Observations of Oval-, Pear-, and Marquise-Shaped Diamonds: Implications for Fancy Cut Grading

Presents findings from observations of oval-, pear-, and marquise-shaped diamonds, laying the groundwork for a fancy cut grading system.

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Generative Artificial Intelligence as a Tool for Jewelry Design

Evaluates the use of generative AI programs in jewelry design and addresses the related ethical, legal, and regulatory challenges.

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Amethyst from Newfoundland, Canada: Geology, Internal Features, and Fluid Inclusion Microthermometry

Characterizes gem-quality amethyst from the La Manche deposit in the Avalon Zone of Newfoundland, Canada.

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Splendors from the Deep: Historic Treasures from a Spanish Shipwreck

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Scenes from 90 Years of Gems & Gemology

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Gems & Gemology at Ninety: A Look to the Future

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The Extraordinary Backstory of Natural Diamonds: A Diamond Is (and Has Been) Forever

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“Cotton Pearl” Imitations

An in-depth look at a new pearl simulant gaining popularity in the fashion jewelry market.

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Two Imitation Melo Pearls

GIA’s Hong Kong and Bangkok laboratories report on imitation pearls with a striking resemblance to natural Melo pearls.

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Fall 2024 G&G Publication Information

This document provides the publication information for Gems & Gemology

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GIA Student Design Showcase

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Brown Zoning in Diamond

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Rainbow-Colored Partially Healed Fissure in Blue Sapphire

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Written Characters in Black Opal

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Fashioned Queen Conch Shell Bead

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