| Total qty | Discount | Per unit | You save |
|---|---|---|---|
| 1 – 2 | — | — | |
| 3 – 4 | 5% off | ||
| 5 – 9 | 10% off | ||
| 10 + | 12% off |
Black Onyx, also known as black agate, is dyed black chalcedony. Chalcedony is composed of tiny quartz crystals not visible to the naked eye. Natural black chalcedony is exceptionally rare — virtually all black chalcedony on the market is grey chalcedony that has been chemically treated to achieve its distinctive, uniform shiny black color. Black Onyx is the top-selling chalcedony in the jewelry market and has a rich history as a staple of Art Deco jewelry design.
These round cabochons feature a clean, opaque black appearance that pairs well with a wide range of metal types and setting styles, making them a versatile choice for professional jewelers and metalsmiths.
| Stone Type | Black Onyx (Dyed Black Chalcedony) |
|---|---|
| Cut | Round Cabochon |
| Color | Uniform Opaque Black |
| Treatment | Dyed |
| Care | Warm soapy water; ultrasonic and steam cleaning are generally safe |
| Part # | Size |
|---|---|
| 947-R04 | 4mm |
| 947-R06 | 6mm |
| 947-R08 | 8mm |
| 947-R10 | 10mm |
| 947-R12 | 12mm |
| 947-R14 | 14mm |
| 947-R16 | 16mm |
| 947-R18 | 18mm |
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