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Three loose white freshwater pearls above three strands of freshwater and akoya cultured pearls of varying sizes
Freshwater Akoyas - A Trending Misnomer for Certain Freshwater Pearls

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Gems & Gemology Fall 2025 In Brief
Fall 2025 G&G Available Now

An overview of the Fall 2025 Gems & Gemology content.

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Figure 1. This 37.41 ct rough diamond has distinct pink and colorless zones. Photo by Tebogo Hambira.
Extraordinary Large Bicolor Natural Rough Diamond

A 37.41 ct natural rough diamond with distinct pink and colorless zones is examined at GIA’s Botswana laboratory.

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Tahitian Pearls
How GIA Analyzes Pearls from Start to Finish

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Starry Night
How GIA Analyzes Colored Stones from Start to Finish

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Gems & Gemology Summer 2025 In Brief
Summer 2025 G&G Available Now

An overview of the Summer 2025 Gems & Gemology content.

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