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Quantity: 1 pound Average size range: 20 to 30 millimeters Rubies are one of two varieties of the aluminum oxide mineral corundum. Rarer than sapphire, ruby corundum contains large amounts of chromium in its crystalline structure. Ruby is considered one of the traditional “Big 4” gemstones along with diamonds, emeralds, and sapphires, and has been used in jewelry and carvings for thousands of years.
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🇺🇸 Ship from USA · On Agora since 2026
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