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 |
12.60ct Green Maw-Sit-Sit, Round, Opaque
12 mm (calibrated)
$ 41.42
5.35ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 17.59
7.37ct White Quartz, Round, VVS-VS
12 mm (calibrated)
$ 12.91
5.93ct Yellow Citrine, Round, VVS-VS
12 mm (calibrated)
$ 45.48
7.60ct Brown Tiger'S Eye, Round, Opaque
12 mm (calibrated)
$ 9.84
11.74ct Black Star Diopside, Round, Opaque
12 mm (calibrated)
$ 58.47
4.91ct Orange Sunstone, Round, Translucent
12 mm (calibrated)
$ 29.97
5.73ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 9.42
11.67ct Red Star Garnet, Round, Opaque
12 mm (calibrated)
$ 11.50
8.50ct Black Star Diopside, Round, Opaque
12 mm (calibrated)
$ 42.33
8.06ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 35.32
5.45ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 17.92
5.67ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 11.12
5.47ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 29.97
13.84ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 45.48
4.09ct Brown Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 10.27
7.34ct Pink Morganite, Round, Translucent
12 mm (calibrated)
$ 80.42
7.66ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 15.11
8.10ctw Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 17.75
6.79ct Blue Larimar, Round, Opaque
12 mm (calibrated)
$ 77.57
12.95ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 42.57
8.22ct Multicolor Labradorite, Round, Translucent
12 mm (calibrated)
$ 17.69
12.72ct White Rutile Quartz, Sphere / Ball, Translucent
12 mm (calibrated)
$ 14.64
5.29ct Multicolor Mystic Quartz, Round, VVS-VS
12 mm (calibrated)
$ 13.17
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 
Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10
Overall Rating -> 10
Found a rock that met my need. Bought it!
Overall Rating -> 9 
They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!
Overall Rating -> 10
On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc
Overall Rating -> 9
Plan on purchasing on an ongoing basis. So far.....so good....
Overall Rating -> 9
Nothing bad to report. Everything is as expected. The gems and the price are all very good.
