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Home Calibrated Gemstones Round Shape 12 mm Gems

Buy 12 mm Round Calibrated Gemstones from GemSelect

Round Shape 12 mm Gems Weight
Round Shape 12 mm Gems Size
Round Shape 12 mm Gems Clarity
Round Shape 12 mm Gems Price

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For Example: 8-9
Bi-color
Black Round Shape 12 mm Gems
Blue Round Shape 12 mm Gems
Brown Round Shape 12 mm Gems
Golden
Gray Round Shape 12 mm Gems
Green Round Shape 12 mm Gems
Multicolor Round Shape 12 mm Gems
Orange Round Shape 12 mm Gems
Pink Round Shape 12 mm Gems
Purple
Red Round Shape 12 mm Gems
Turquoise Round Shape 12 mm Gems
Violet Round Shape 12 mm Gems
White Round Shape 12 mm Gems
Yellow Round Shape 12 mm Gems
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11.63ctw Yellow Quartz, Round, VVS

12 mm (calibrated)

$ 51.09

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5.59ct Pink Rose Quartz, Round, Transparent

12 mm (calibrated)

$ 20.21

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14.69ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 48.29

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14.77ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 45.97

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6.20ct Blue Larimar, Round, Translucent

12 mm (calibrated)

$ 74.14

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5.38ct Brown Rutile Quartz, Round, Transparent

12 mm (calibrated)

$ 13.50

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5.27ct Brown Smoky Quartz, Round, VVS-VS

12 mm (calibrated)

$ 17.32

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13.21ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 41.10

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6.66ct Brown Tiger'S Eye, Round, Opaque

12 mm (calibrated)

$ 8.62

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4.06ct Multicolor Opal, Round, Opaque

12 mm (calibrated)

$ 121.31

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5.44ct Brown Smoky Quartz, Round, VVS-VS

12 mm (calibrated)

$ 8.95

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15.28ctw Multicolor Labradorite, Round, Translucent

12 mm (calibrated)

$ 37.13

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6.60ct Yellow Quartz, Round, VVS

12 mm (calibrated)

$ 36.15

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14.65ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 45.71

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4.20ct Brown Smoky Quartz, Round, VVS

12 mm (calibrated)

$ 13.80

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8.13ct White Quartz Cat'S Eye, Round, Transparent

12 mm (calibrated)

$ 32.39

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4.86ct Brown Smoky Quartz, Round, Transparent

12 mm (calibrated)

$ 20.38

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5.80ct Brown Smoky Quartz, Round, VVS

12 mm (calibrated)

$ 19.07

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12.21ctw Multicolor Labradorite, Round, Translucent

12 mm (calibrated)

$ 26.26

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4.43ct Brown Smoky Quartz, Round, VVS-VS

12 mm (calibrated)

$ 7.29

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8.11ct White Quartz Cat'S Eye, Round, Transparent

12 mm (calibrated)

$ 26.18

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23.25ctw Yellow Rutile Quartz, Sphere / Ball, Transparent

12 mm (calibrated)

$ 25.48

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7.65ct Multicolor Labradorite, Round, Translucent

12 mm (calibrated)

$ 16.45

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9.29ctw Multicolor Labradorite, Round, Translucent

12 mm (calibrated)

$ 20.36

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Why Buy Round Shape 12 Mm Gems from GemSelect?

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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.

Posted By Jac in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate
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