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78102

Amadesa

Black Onyx 20 x 15mm Oval Cabochon

Black Onyx 20 x 15mm Oval Cabochon

Priced per Pack of 6
$21.09
$21.09
Sale Sold out
Stone Size

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Estimated shipping date: 2025-12-09

Add depth and drama to your jewelry designs with this black onyx oval cabochon. This cab complements any metal and is ideal for one-of-a-kind 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.
  • Gemstone Type: Onyx
  • Stone Shape: Oval
  • Stone Size: 20 x 15mm
  • Stone Type: Natural
  • Color: Black
  • Enhancement: Dyed (D)
  • Mohs Hardness: 6.5–7
  • Refractive Index: 1.53–1.54
  • Specific Gravity: 2.55–2.7
  • Weight: 0.000 kg

Specifications

Color:
Black
Enhancement:
Dyed (D)
Gemstone type:
Onyx
Mohs hardness:
6.5–7
Price per unit:
Priced per Pack of 6
Refractive index:
1.53–1.54
Specific gravity:
2.55–2.7
Stone shape:
Oval
Stone size:
20 x 15mm
Stone type:
Natural
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