A staple color in jewelry designs that complements nearly any gemstone, this black oval onyx cabochon is ideal for adding depth and drama to custom designs. Set it in a bezel mounting to make a simple pendant or combine it with complementary-color gemstones to create complex necklace designs as well as matching sets including earrings and bracelets. 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.
Specifications
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Color:
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Black
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Cutting center:
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China
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Enhancement:
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Dyed (D)
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Gemstone type:
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Onyx
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Mohs hardness:
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6.5–7
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Price per unit:
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Priced per Pack of 20
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Refractive index:
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1.53–1.54
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Specific gravity:
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2.55–2.7
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Stone shape:
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Oval
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Stone size:
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10 x 8mm
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Stone type:
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Natural
