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4.0 mm Trillion Black Onyx
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A calibrated 4.0 mm Trillion Black Onyx from Brazil, treated with Dye. Sold loose and unmounted; larger quantities available on request.
Standard
Quality
Black Onyx
Gemstone
| Type | Black Onyx |
| Color | Black |
| Shape | Trillion |
| Size (mm) | 4.0 |
| Cut | Calibrated |
| Treatment | Dye |
| Country of Origin | Brazil |