Black spinel rings offer a depth of color that few dark gemstones can match. This natural mineral scores 7.5-8 on the Mohs hardness scale, making it suitable for daily wear. Unlike treated black diamonds or dyed onyx, genuine black spinel gets its color from iron-rich mineral content during formation. Our collection includes 36,647 rings priced from $6 to $6,302, each set in .925 sterling silver with natural stones. Free shipping applies to all US orders.
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Yes, black spinel is a natural mineral that forms in metamorphic and igneous rocks. It has been mined for centuries, though it was often misidentified as black tourmaline or onyx before modern gemological testing.
Black spinel rates 7.5 to 8 on the Mohs hardness scale. This places it harder than quartz and close to topaz, making it resistant to scratches during normal wear.
Warm water with mild dish soap works well. Use a soft brush to clean around the setting, rinse thoroughly, and dry with a lint-free cloth. Avoid ultrasonic cleaners and harsh chemicals.