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Hardness: 6.5-7 Mohs

Enhancement Code: Dyeing

Quality Information:

Standard: Black; good cut; good polish

Care: Rated “fair” for everyday wear. Avoid exposure to heat, contact with chemicals, and protect from scratches and harsh blows. To clean, gently scrub with a soft toothbrush and a solution of mild dish soap and warm water or clean in an at-home ultrasonic unit.

Major Sources: Brazil, Madagascar, United States, Uruguay

The velvety black of Onyx makes an unmistakable statement of power, authority and sophistication. Carved in the image of Mars, the God of war, Onyx was reputed to give courage to Roman soldiers.

A dramatic background for brilliantly coloured gems, Onyx can also stand alone for a bold and richly self-assured look. Onyx complements designs inspired by medieval architecture or with natural styles influenced by the cultures of India and Africa. It’s a natural for masculine jewelry.