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 |
14.47ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 47.56
5.28ct Yellow Quartz, Round, VS
12 mm (calibrated)
$ 21.28
14.18ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 46.60
6.20ct Yellow Quartz, Round, Transparent
12 mm (calibrated)
$ 24.58
5.35ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 21.51
15.27ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 50.19
13.76ct Green Maw-Sit-Sit, Round, Opaque
12 mm (calibrated)
$ 45.23
13.21ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 41.10
5.65ct Yellow Citrine, Round, VVS
12 mm (calibrated)
$ 43.33
23.69ctw Brown Rutile Quartz, Sphere / Ball, Transparent
12 mm (calibrated)
$ 25.95
13.20ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 43.38
12.60ct Green Maw-Sit-Sit, Round, Opaque
12 mm (calibrated)
$ 41.42
4.23ct Brown Rutile Quartz, Round, Transparent
12 mm (calibrated)
$ 10.62
6.88ct Pink Rose Quartz, Round, Transparent
12 mm (calibrated)
$ 37.69
8.90ct Multicolor Ruby-Zoisite, Round, Opaque
12 mm (calibrated)
$ 21.63
7.53ct Black Spinel, Round, Opaque
12 mm (calibrated)
$ 24.75
5.16ct Yellow Quartz, Round, VVS
12 mm (calibrated)
$ 20.81
5.17ct Yellow Quartz, Round, Transparent
12 mm (calibrated)
$ 20.51
6.06ct Pink Rose Quartz, Round, Transparent
12 mm (calibrated)
$ 24.10
14.99ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 49.27
4.89ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 16.08
8.77ct Brown Smoky Quartz, Round, VVS
12 mm (calibrated)
$ 24.01
10.94ctw Brown Smoky Quartz, Round, VS
12 mm (calibrated)
$ 29.97
11.74ct Black Star Diopside, Round, Opaque
12 mm (calibrated)
$ 58.47
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
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GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 7 
Overall the site is good to use and simple to navigate for what i needed and i liked that they are clear and detailed on the size shape and cut of the stones only input id like is for stones that have a specific refractive quality like moonstone in my case if theyd showcase the cut stones refraction so you know how it looks when buying
Overall Rating -> 10 
I enjoyed the enormous amount of knowledge on your site. It helped me choose the gems I purchased.
Overall Rating -> 10
Enjoy every moment
Overall Rating -> 10
Web site is very simple to navigate Selection is terrific
Overall Rating -> 7
easy interface for a pricless buy
Overall Rating -> 10
The process was pleasant, I chose to purchase the stone traditional to the month of March as it is the month in which I was born.
