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 |
5.84ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 9.60
8.22ct Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 17.69
5.59ct Pink Rose Quartz, Round, Transparent
12 mm (calibrated)
$ 20.21
7.65ct Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 16.45
5.03ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 16.53
6.40ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 7.65
24.81ctw Multicolor Jasper, Sphere / Ball, Opaque
12 mm (calibrated)
$ 27.18
5.32ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 29.14
12.82ctw Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 42.37
5.91ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 45.33
6.41ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 25.41
4.96ct Brown Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 12.45
5.26ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 23.11
11.09ct Black Star Diopside, Round, Opaque
12 mm (calibrated)
$ 55.23
5.42ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 41.57
6.84ct Brown Tiger'S Eye, Round, Opaque
12 mm (calibrated)
$ 8.86
5.98ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 45.87
4.86ct Brown Smoky Quartz, Round, Transparent
12 mm (calibrated)
$ 20.38
5.60ct White Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 14.04
12.70ct Multicolor Agate, Sphere / Ball, Opaque
12 mm (calibrated)
$ 10.12
5.99ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 45.93
10.25ctw Brown Smoky Quartz, Round, VS
12 mm (calibrated)
$ 33.70
11.18ctw Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 24.05
14.99ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 49.27
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 
It was a good interaction I got a good gemstone for cheap
Overall Rating -> 10 
I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.
Overall Rating -> 9 
Had to get here via the Facebook page. Googling direct brought up an error message.
Overall Rating -> 10
Good selection prices are reasonable!
Overall Rating -> 10
GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'
Overall Rating -> 10
Good. I ts very user friendly.
