Research Article Search Results

Characterization of Chinese Hydrothermal Synthetic Emerald

Synthetic emeralds grown hydrothermally in an alkali-free, chlorine-bearing solution have been manufactured in Guilin, China, since 1987.

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Synthetic Moissanite: A New Diamond Substitute

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Strong Pinkish Purple Freshwater Bead-Cultured Pearls

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Spectral Characteristics of Pinctada Mazatlanica and Pinctada Margaritifera Pearl Oyster Species

Examination of shells from on P. mazatlanica proves the similarities between that species and P. margaritifera.

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The Pearl in the Chicken: Pearl Recipes in Papyrus Holmiensis

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The Gemological Properties of the De Beers Gem-Quality Synthetic Diamonds

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Cutting Diffraction Gratings to Improve Dispersion (“Fire”) in Diamonds

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Baroque Pearls

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Crimson Prince Ruby from Namya

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Diamond Slices

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Diagnostic Features and Heat Treatment of Kashmir Sapphires

Today, only by combining different gemological tests with years of practical experience, can a conclusive determination of the origin of a sapphire be made.

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What Have Diamond Ages Taught Us?

Diamond ages offer insight into continent evolution spanning billions of years.

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