Black Onyx Round Rose-Cut Cabochon

Priced per Each

₩30,376

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Stone Size 8mm 10mm 12mm

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Delivery time: 2–3 weeks
Estimated arrival: Dec 26, 2025 – Jan 02, 2026

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.

Gemstone type: Onyx
Stone shape: Round
Stone size: 10mm, 12mm, 8mm
Stone type: Natural
Color: Black
Enhancement: Heat-treated (H)
Mohs hardness: 6.5–7
Refractive index: 1.53–1.54
Specific gravity: 2.55–2.7
Brand: AGTA
Cutting center: India