SKU:79121
AGTA
Black Onyx Round Rose-Cut Cabochon
Delivery time: 3–5 weeks
Estimated arrival: Jan 31, 2026 – Feb 14, 2026
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With an opaque black color and a rose cut that catches the light, this round black onyx cabochon is ideal for adding depth and drama to custom jewelry designs. A staple color in jewelry designs that complements nearly any gemstone, this cab is ideal for one-of-a-kind pendant and bracelet designs. Onyx, a type of opaque chalcedony, is naturally black and is generally dyed to achieve a more uniform color—it is the most common black gemstone and is popular for creating a striking centerpiece and for adding contrast to designs that include lighter and/or more colorful gems. It is a hard gemstone and takes a high polish; since ancient times, onyx has been a favorite for carving. A favorite of yesteryear, this rose-cut faceting features a flat base (no pavilion) and a crown made up of triangular facets.
Specifications
- Brand:
- AGTA
- Color:
- Black
- Cutting center:
- India
- Enhancement:
- Heat-treated (H)
- Gemstone type:
- Onyx
- Mohs hardness:
- 6.5–7
- Price per unit:
- Priced per Each
- Refractive index:
- 1.53–1.54
- Specific gravity:
- 2.55–2.7
- Stone shape:
- Round
- Stone size:
- 8mm
- Stone type:
- Natural
