C&S-Onyx-Genuine

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 colored gems like Fire Opal and Tsavorite Garnet, Onyx can also stand alone for a bold and richly self-assured look. Its versatility and affordability allow it to fit seamlessly into a wide range of jewelry styles. Pair the mystical black of Onyx with designs inspired by medieval architecture or with natural styles influenced by the cultures of India and Africa. Take advantage of the design services of our system, select your ideal design and setting for your Black Onyx gemstone, and we’ll create customized jewelry that is as distinctive as you are.

Birthstone Information/Anniversary Stones/Gemstone Care/AGTA Codes

Quality Information & Color Information

QualityDescriptionVariations
Standard Black; good cut; good polish

N/A

Care

Onyx is 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  
Source Map

Properties & Reactions

D
6.5-7
Black
Chalcedony
1.535-1.539
2.6
AGG
None
Safe
Safe
Fair - color change may occur with heat
Hydrofluoric acid, nitric acid