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 |
5.27ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 17.32
5.44ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 8.95
4.55ct Multicolor Black Opal, Round, Opaque
12 mm (calibrated)
$ 135.95
6.20ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 47.55
8.64ct Multicolor Agate, Round, Opaque
12 mm (calibrated)
$ 8.18
13.86ctw Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 29.82
9.99ctw Yellow Quartz, Round, VVS-VS
12 mm (calibrated)
$ 54.73
6.71ct Yellow Apatite, Round, VVS-VS
12 mm (calibrated)
$ 183.50
12.72ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 41.82
4.83ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 15.88
23.84ctw Multicolor Jasper, Sphere / Ball, Opaque
12 mm (calibrated)
$ 26.11
10.02ct Green Maw-Sit-Sit, Round, Opaque
12 mm (calibrated)
$ 23.37
5.42ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 41.57
10.11ct Black Star Diopside, Round, Opaque
12 mm (calibrated)
$ 50.35
5.03ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 16.53
6.63ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 18.17
4.67ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 7.68
8.74ctw Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 19.16
10.53ctw Yellow Quartz, Round, VVS-VS
12 mm (calibrated)
$ 23.07
27.60ctw Yellow Rutile Quartz, Sphere / Ball, Transparent
12 mm (calibrated)
$ 30.24
5.99ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 45.93
6.33ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 25.10
7.61ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 33.35
5.80ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 19.07
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 
This was my first experience with this company. I had no difficulty finding the item I wanted, and checking out was a breeze! Ia'm hoping my item arrives quickly, intact, and of good quality. Overall, this was a very satisfactory experience.
Overall Rating -> 10
No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!
Overall Rating -> 10
Although the stones are smaller than I thought, I really don't think in millimeters, they are perfect. I plan to put one into a ring and the other into a necklace. Ordering was easy, contact kept me aware of how shipping was going, and delivery was sooner than expected. The quality of stones I have ordered in the past and this recent order is outstanding and stones I will be proud to wear.
Overall Rating -> 10
Web site is very simple to navigate Selection is terrific
Overall Rating -> 7 
easy interface for a pricless buy
Overall Rating -> 10
Very neat and to the point
