Spinel Gemstones

It’s Not a Ruby: Spinel’s Well-Kept Secret in High Jewelry

You thought it was a ruby. So did the Black Prince, Edward of Woodstock, Prince of Wales, in 1367, who owned one of the most famous colored gems in the collection of the British Crown Jewels. However, he was wrong. It’s not a ruby and it isn’t black either. It’s a red spinel crystal, uncut, …

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