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?
- 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 
Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.
Overall Rating -> 10
Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.
Overall Rating -> 9 
Fast and reliable service.
Overall Rating -> 10
The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.
Overall Rating -> 9
Ita's a pretty good and simple way to find gems that youa're looking for amazing selection
Overall Rating -> 9
The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.
