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Certified 40 Carat Natural Unheated Ceylon Yellow Sapphire Diamond Cocktail Ring For Sale at 1stDibs
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40 carat "Royal Blue" version of Czochralski Lab Sapphire I posted a few days ago (higher titanium/iron Dopant level, we think) : r/Gemstones
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7.23 Carat Unenhanced Royal Blue Burmese Sapphire and Diamond Ring, circa 1960s For Sale at 1stDibs | burmese sapphire engagement ring, royal blue ring
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