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Sapphires: From Ceylon to Ethiopia | GIA Knowledge Sessions Webinar Series

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How To Make Synthetic Ruby In The Workshop

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I Cut a Raw 10 Carat Montana Sapphire Into a Beautiful Gemstone

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Synthetic vs Natural Gemstone Unboxing: Ruby, Emerald & More!

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Furnaces, Fluxes and Filling: A Review of Ruby Treatment | GIA Knowledge Sessions Webinar Series