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 |
11.65ctw White Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 25.53
4.39ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 14.43
12.25ct Multicolor Agate, Sphere / Ball, Opaque
12 mm (calibrated)
$ 9.76
8.25ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 16.28
10.79ctw Yellow Quartz, Round, VVS-VS
12 mm (calibrated)
$ 43.38
12.95ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 42.57
8.38ct Multicolor Agate, Round, Opaque
12 mm (calibrated)
$ 8.35
5.58ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 18.33
12.29ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 38.24
7.55ct Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 18.34
7.65ct Pink Rose Quartz, Round, Transparent
12 mm (calibrated)
$ 41.92
6.89ct Blue Larimar, Round, Opaque
12 mm (calibrated)
$ 78.70
6.18ct Brown Smoky Quartz, Round, Opaque
12 mm (calibrated)
$ 25.94
5.32ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 14.57
4.72ct Brown Smoky Quartz, Round, VS
12 mm (calibrated)
$ 14.10
5.24ct Multicolor Mystic Quartz, Round, VVS-VS
12 mm (calibrated)
$ 15.65
5.77ct Brown Rutile Quartz, Round, Translucent
12 mm (calibrated)
$ 14.48
8.02ct Multicolor Agate, Round, Opaque
12 mm (calibrated)
$ 13.58
5.08ct Multicolor Mystic Quartz, Round, VVS-VS
12 mm (calibrated)
$ 15.18
7.00ct Brown Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 17.56
7.60ct Brown Tiger'S Eye, Round, Opaque
12 mm (calibrated)
$ 9.84
5.21ct Brown Smoky Quartz, Round, Transparent
12 mm (calibrated)
$ 21.86
14.26ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 44.37
5.64ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 24.78
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 -> 10 
I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!
Overall Rating -> 10
I feel Gemselect is a trustworthy company to buy from
Overall Rating -> 8 
It was a good interaction I got a good gemstone for cheap
Overall Rating -> 10
Recomendado Totalmente Los Productos Se Entregaron A Tiempo
Overall Rating -> 10
Excellent options
Overall Rating -> 9 
I've made several purchases over the last 8 years and I've never been less than happy with any of them.
