Buy Black Onyx Gems
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| ID: | 669434 |
| Weight: | 8.49 |
| Size: | 10.5 x 10.3 mm |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 10.19 |
| Item in Stock | |
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| ID: | 686810 |
| Weight: | 3.03 |
| Size: | 7 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 7.27 |
| Item in Stock | |
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| ID: | 669899 |
| Weight: | 4.31 |
| Size: | 10.4 x 10.3 mm |
| Clarity: | Opaque |
| Price: | $ 5.17 |
| Item in Stock | |
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pcs
| ID: | 722385 |
| Weight: | 22.03 |
| Size: | 18 x 13 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 26.44 |
| Item in Stock | |
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| ID: | 672132 |
| Weight: | 4.89 |
| Size: | 11 x 11 mm (calibrated) |
| Clarity: | Opaque |
| Price: | $ 11.74 |
| Item in Stock | |
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pcs
| ID: | 669546 |
| Weight: | 21.26 |
| Size: | 25 x 18 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 25.51 |
| Item in Stock | |
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| ID: | 722394 |
| Weight: | 4.35 |
| Size: | 10.5 x 10.3 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 5.22 |
| Item in Stock | |
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| ID: | 687944 |
| Weight: | 1.12 |
| Size: | 6.5 mm (calibrated) |
| Clarity: | Opaque |
| Price: | $ 2.69 |
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pcs
| ID: | 722134 |
| Weight: | 20.57 |
| Size: | 18 x 13 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 24.68 |
| Item in Stock | |
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| ID: | 687945 |
| Weight: | 1.24 |
| Size: | 6.5 mm (calibrated) |
| Clarity: | Opaque |
| Price: | $ 2.98 |
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pcs
| ID: | 687942 |
| Weight: | 1.16 |
| Size: | 6.5 mm (calibrated) |
| Clarity: | Opaque |
| Price: | $ 2.78 |
| Item in Stock | |
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pcs
| ID: | 687656 |
| Weight: | 1.96 |
| Size: | 5.5 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 4.70 |
| Item in Stock | |
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| ID: | 672134 |
| Weight: | 4.71 |
| Size: | 11 x 11 mm (calibrated) |
| Clarity: | Opaque |
| Price: | $ 11.30 |
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pcs
| ID: | 721550 |
| Weight: | 8.43 |
| Size: | 10.4 x 10.4 mm |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 10.12 |
| Item in Stock | |
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| ID: | 721543 |
| Weight: | 8.52 |
| Size: | 10.5 x 10.4 mm |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 10.22 |
| Item in Stock | |
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| ID: | 687838 |
| Weight: | 2.90 |
| Size: | 7 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 6.96 |
| Item in Stock | |
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| ID: | 688337 |
| Weight: | 3.22 |
| Size: | 7 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 7.73 |
| Item in Stock | |
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| ID: | 688028 |
| Weight: | 3.20 |
| Size: | 7 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 7.68 |
| Item in Stock | |
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| ID: | 721338 |
| Weight: | 4.33 |
| Size: | 10 x 10 mm (calibrated) |
| Clarity: | Opaque |
| Price: | $ 5.20 |
| Item in Stock | |
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pcs
| ID: | 671960 |
| Weight: | 4.70 |
| Size: | 11 x 11 mm (calibrated) |
| Clarity: | Opaque |
| Price: | $ 11.28 |
| Item in Stock | |
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pcs
| ID: | 687841 |
| Weight: | 3.36 |
| Size: | 7.5 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 8.06 |
| Item in Stock | |
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| ID: | 687559 |
| Weight: | 2.06 |
| Size: | 6.5 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 4.94 |
| Item in Stock | |
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| ID: | 688177 |
| Weight: | 2.20 |
| Size: | 5.5 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 5.28 |
| Item in Stock | |
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| ID: | 722139 |
| Weight: | 21.54 |
| Size: | 18 x 13 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 25.85 |
| Item in Stock | |
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Why Buy Black Onyx from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
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GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
Good selection prices are reasonable!
Posted By ToRa62 in April, 2026
Source: Bizrate
Overall Rating -> 10
I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.
Posted By Kelly in May, 2026
Source: Bizrate
Overall Rating -> 10
Great experience. I can't wait to explore on the website further.
Posted By Kymmie in September, 2025
Source: Bizrate
Overall Rating -> 10
On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc
Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate
Overall Rating -> 10
So far So good
Posted By VH-1 in July, 2025
Source: Bizrate
Overall Rating -> 9 
It was great!
Posted By Annie in September, 2025
Source: Bizrate
