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ID: 3434681 pcs
thumb image of 11.5ct Carved Rose with Hole Gold Brown Tiger's Eye (ID: 343468)
11.54 ct Tiger's Eye
15.6 x 15.1 mm
$ 13.85
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ID: 3781971 pcs
thumb image of 12ct Cushion-Cut Violet Blue Tanzanite (ID: 378197)
12.03 ct Tanzanite
13.1 x 12.8 mm
$ 6123.75
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ID: 3781951 pcs
thumb image of 11.8ct Cushion-Cut Violet Blue Tanzanite (ID: 378195)
11.81 ct Tanzanite
15.4 x 10.5 mm
$ 6011.76
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ID: 3829451 pcs
thumb image of 11.7ct Oval Cabochon Lavender Jadeite (ID: 382945)
11.71 ct Jadeite
16.6 x 14 mm
$ 81.97
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ID: 4333071 pcs
thumb image of 12.9ct Pear Cabochon Brownish Orange Agate (ID: 433307)
12.94 ct Agate
18.9 x 16.2 mm
$ 10.35
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ID: 3286071 pcs
thumb image of 11.6ct Carved Rose with Half Drilled Hole Gold Brown Tiger's Eye (ID: 328607)
11.57 ct Tiger's Eye
15.7 x 15.5 mm
$ 13.88
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ID: 3632451 pcs
thumb image of 12ct Fancy Cabochon Multicolor Jasper (ID: 363245)
11.97 ct Jasper
22.3 x 12.9 mm
$ 23.94
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ID: 4164631 pcs
thumb image of 12.3ct Oval Facet Golden Green Tourmaline (ID: 416463)
12.25 ct Tourmaline
15.7 x 12.8 mm
$ 2450.00
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ID: 4473241 pcs
thumb image of 12.4ct Cushion Cabochon Multicolor Dendritic Chalcedony (ID: 447324)
12.42 ct Dendritic Chalcedony
18.3 x 13.1 mm
$ 18.63
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ID: 4503721 pcs
thumb image of 11.9ct Baguette / Scissor Cut Light Blue Aquamarine (ID: 450372)
11.89 ct Aquamarine
16.8 x 9.9 mm
$ 2972.50
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ID: 3713631 pcs
thumb image of 12.1ct Oval Cabochon Multicolor Jasper (ID: 371363)
12.07 ct Jasper
16 x 12.2 mm
$ 12.07
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ID: 4009081 pcs
thumb image of 11.7ct Oval Facet Greenish Golden Apatite (ID: 400908)
11.65 ct Apatite
14.7 x 13 mm
$ 932.00
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ID: 3285991 pcs
thumb image of 12ct Carved Rose with Half Drilled Hole Gold Brown Tiger's Eye (ID: 328599)
11.96 ct Tiger's Eye
15.1 x 14.3 mm
$ 14.35
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ID: 4503711 pcs
thumb image of 11.9ct Octagon / Scissor Cut Light Blue Aquamarine (ID: 450371)
11.87 ct Aquamarine
17.4 x 10 mm
$ 2967.50
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ID: 3073951 pcs
thumb image of 11.6ct Pear Cabochon Colorless Golden Rutile Quartz (ID: 307395)
11.55 ct Rutile Quartz
20.4 x 12.7 mm
$ 40.43
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ID: 3434641 pcs
thumb image of 12.1ct Carved Rose with Hole Gold Brown Tiger's Eye (ID: 343464)
12.09 ct Tiger's Eye
16.3 x 16.2 mm
$ 14.51
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ID: 3708351 pcs
thumb image of 12.2ct Oval Cabochon Multicolor Jasper (ID: 370835)
12.24 ct Jasper
19.9 x 15.1 mm
$ 12.24
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ID: 3707501 pcs
thumb image of 12.3ct Oval Cabochon Multicolor Jasper (ID: 370750)
12.26 ct Jasper
19.7 x 14.5 mm
$ 12.26
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ID: 4349101 pcs
thumb image of 11.7ct Pear Cabochon Gold Sheen Obsidian (ID: 434910)
11.68 ct Obsidian
18.2 x 13.9 mm
$ 17.52
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ID: 4144031 pcs
thumb image of 11.7ct Round Facet Violet-Blue Color-Change Fluorite (ID: 414403)
11.73 ct Color-Change Fluorite
13.9 mm
$ 234.60
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ID: 3828651 pcs
thumb image of 12.5ct Oval Cabochon Lavender Jadeite (ID: 382865)
12.45 ct Jadeite
15.6 x 12.3 mm
$ 87.15
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12 Carat Gems
Buy gems by price. Select the best 12 carat gems from a wide array of colored stones, including rare gem types such as scapolite, black opal and pietersite. Also available are beautiful and popular faceted gems, including tanzanite, zircon and tourmaline. Large 12 carat gems make perfect statement stones, whether they are worn as a necklace pendant, ring or another jewelry design. Browse the largest selection of natural loose colored gemstones available in 12 carats. From here, you can use our filters at the top or on the left-hand side to find gems by gem type, color, shape, cut and so on. For example, select 'jadeite' to see all of our 12 carat jadeite gems. Select 'green' to shop for 12 carat green gems. You can also filter by single, pairs, lots, faceted gems or cabochons by using the check boxes at the top.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart