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 |
6.16ct Brown Smoky Quartz, Round, Transparent
12 mm (calibrated)
$ 25.85
12.44ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 38.70
13.20ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 43.38
10.43ctw Yellow Quartz, Round, VVS-VS
12 mm (calibrated)
$ 22.86
6.01ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 9.88
5.55ct Violet Amethyst, Round, Transparent
12 mm (calibrated)
$ 38.69
6.60ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 21.70
5.28ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 33.75
5.08ct Brown Smoky Quartz, Round, VS
12 mm (calibrated)
$ 8.35
6.41ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 12.57
6.28ctw Multicolor Pietersite, Round, Opaque
12 mm (calibrated)
$ 14.70
4.83ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 15.88
4.95ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 8.13
5.41ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 29.64
7.77ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 27.67
7.02ctw Multicolor Pietersite, Round, Opaque
12 mm (calibrated)
$ 16.43
24.81ctw Multicolor Jasper, Sphere / Ball, Opaque
12 mm (calibrated)
$ 27.18
8.40ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 36.81
7.00ct Brown Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 17.56
6.32ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 48.46
20.89ctw Multicolor Jasper, Sphere / Ball, Opaque
12 mm (calibrated)
$ 22.89
6.10ct Yellow Quartz, Round, Transparent
12 mm (calibrated)
$ 24.19
6.92ct Blue Larimar, Round, Opaque
12 mm (calibrated)
$ 79.05
5.32ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 14.57
Why Buy Round Shape 12 Mm Gems from GemSelect?
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- 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 
Very pleasant
Overall Rating -> 10
Great experience. I can't wait to explore on the website further.
Overall Rating -> 10
Found a rock that met my need. Bought it!
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
Very neat and to the point
Overall Rating -> 8 
It was a good interaction I got a good gemstone for cheap
