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 |
25.19ctw White Rutile Quartz, Sphere / Ball, Translucent
12 mm (calibrated)
$ 28.98
5.35ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 29.32
13.49ct Gray Pearl, Sphere / Ball, Opaque
12 mm (calibrated)
$ 218.02
4.12ct Multicolor Pietersite, Round, Opaque
12 mm (calibrated)
$ 9.72
12.70ct Multicolor Agate, Sphere / Ball, Opaque
12 mm (calibrated)
$ 10.12
8.14ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 35.67
6.50ct Blue Larimar, Round, Opaque
12 mm (calibrated)
$ 32.12
5.32ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 29.14
6.20ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 47.55
14.47ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 47.56
5.19ct Yellow Quartz, Round, Transparent
12 mm (calibrated)
$ 20.58
7.50ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 26.63
4.23ct Brown Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 10.62
13.98ct Multicolor Agate, Sphere / Ball, Opaque
12 mm (calibrated)
$ 11.14
7.55ct Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 18.34
4.67ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 7.68
5.84ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 9.60
6.96ct Black Star Diopside, Round, Opaque
12 mm (calibrated)
$ 34.66
5.59ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 22.48
24.57ctw Multicolor Jasper, Sphere / Ball, Opaque
12 mm (calibrated)
$ 26.93
15.39ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 50.59
15.42ctw Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 27.65
7.03ct Blue Larimar, Round, Opaque
12 mm (calibrated)
$ 73.02
5.24ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 21.07
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 
Easy to use website
Overall Rating -> 9 
It was great!
Overall Rating -> 10
Easy process.
Overall Rating -> 10
I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.
Overall Rating -> 10
selection was broad and the check out was quick. Great site
Overall Rating -> 10
Great prices!!! High quality gemstones.
