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 |
5.45ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 17.92
7.30ct Brown Tiger'S Eye, Round, Opaque
12 mm (calibrated)
$ 9.45
13.98ct Multicolor Agate, Sphere / Ball, Opaque
12 mm (calibrated)
$ 11.14
5.59ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 42.87
6.71ct Yellow Apatite, Round, VVS-VS
12 mm (calibrated)
$ 183.50
5.29ct Multicolor Mystic Quartz, Round, VVS-VS
12 mm (calibrated)
$ 13.17
5.58ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 8.33
6.06ct Pink Rose Quartz, Round, Transparent
12 mm (calibrated)
$ 24.10
5.42ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 17.82
12.25ct Multicolor Agate, Sphere / Ball, Opaque
12 mm (calibrated)
$ 9.76
11.46ctw Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 41.96
13.20ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 43.38
6.01ct Brown Smoky Quartz, Round, VVS-VS
12 mm (calibrated)
$ 9.88
7.71ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 27.46
7.59ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 26.94
4.12ct Multicolor Pietersite, Round, Opaque
12 mm (calibrated)
$ 9.72
6.23ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 27.37
6.50ct Black Cat'S Eye Scapolite, Round, Translucent
12 mm (calibrated)
$ 35.61
7.50ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 26.63
13.73ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 45.13
6.18ct Brown Smoky Quartz, Round, Opaque
12 mm (calibrated)
$ 25.94
4.70ct Brown Smoky Quartz, Round, VS
12 mm (calibrated)
$ 7.73
12.72ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 41.82
8.06ct White Quartz Cat'S Eye, Round, Transparent
12 mm (calibrated)
$ 35.32
Why Buy Round Shape 12 Mm Gems from GemSelect?
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- 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 
Very large selection from affordable to high end I will be coming back to shop again!
Overall Rating -> 10
All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.
Overall Rating -> 10
Web site is very simple to navigate Selection is terrific
Overall Rating -> 10
The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.
Overall Rating -> 10
love the site, the experience and the products.
Overall Rating -> 8 
Good prices
