Buy 12 mm Round Calibrated Gemstones from GemSelect
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Bi-color
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Black Round Shape 12 mm Gems
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Blue Round Shape 12 mm Gems
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Brown Round Shape 12 mm Gems
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Golden
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Gray Round Shape 12 mm Gems
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Green Round Shape 12 mm Gems
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Multicolor Round Shape 12 mm Gems
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Orange Round Shape 12 mm Gems
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Pink Round Shape 12 mm Gems
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Purple
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Red Round Shape 12 mm Gems
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Turquoise Round Shape 12 mm Gems
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Violet Round Shape 12 mm Gems
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White Round Shape 12 mm Gems
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Yellow Round Shape 12 mm Gems
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
6.46ct Brown Smoky Quartz, Round, VS
13 mm (calibrated)
$ 35.39
10.79ctw Yellow Quartz, Round, VVS-VS
12 mm (calibrated)
$ 43.38
5.53ct Pink Rose Quartz, Round, Transparent
12 mm (calibrated)
$ 18.33
5.48ct Multicolor Mystic Quartz, Round, VVS-VS
12 mm (calibrated)
$ 16.38
13.86ctw Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 29.82
5.53ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 22.24
5.08ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 8.35
5.04ct Brown Smoky Quartz, Round, VS
12 mm (calibrated)
$ 8.28
5.59ct Yellow Quartz, Round, Transparent
12 mm (calibrated)
$ 22.17
5.44ct Yellow Citrine, Round, VS
12 mm (calibrated)
$ 47.68
6.33ct Turquoise Larimar, Round, Opaque
12 mm (calibrated)
$ 75.08
5.78ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 44.33
5.21ct Brown Smoky Quartz, Round, Transparent
12 mm (calibrated)
$ 21.86
6.63ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 18.17
6.66ct Brown Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 18.24
8.67ct Multicolor Agate, Round, Opaque
12 mm (calibrated)
$ 14.68
5.45ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 17.92
5.66ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 15.50
5.35ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 21.51
5.33ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 17.52
5.16ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 20.81
5.13ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 8.43
10.50ctw Multicolor Mystic Quartz, Round, VVS-VS
12 mm (calibrated)
$ 31.37
27.53ctw Brown Smoky Quartz, Round, Transparent
12 mm (calibrated)
$ 34.27
Why Buy Round Shape 12 Mm Gems 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
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 8 
Good prices
Overall Rating -> 10 
It's mostly good, only some item's are easier to find through the search than the menu
Overall Rating -> 9 
Nothing bad to report. Everything is as expected. The gems and the price are all very good.
Overall Rating -> 8
I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.
Overall Rating -> 10
Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.
Overall Rating -> 9
Easy to use. Many options to find the right gemstone
