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Gemstone Durability: Design to Display

A treatise on the design, display, care and repair of fine gemstones.

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Dr E. J. Gübelin Collection Sapphirine
GIA's Gübelin Gem Project: Various Gems, Sapphirine - Stibiotantalite

Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.

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