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ID: 4616831 pcs
thumb image of 13.9ct Octagon Step Cut Bi-Color Ametrine (ID: 461683)
13.93 ct Ametrine
13.3 x 14.3 mm
$ 97.51
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ID: 4089251 pcs
thumb image of 13.1ct Oval Cabochon Blue Hemimorphite (ID: 408925)
13.12 ct Hemimorphite
14.6 x 12.3 mm
$ 432.96
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ID: 3358451 pcs
thumb image of 13.5ct Spherical Golden Pearl (ID: 335845)
13.52 ct Pearl
12.5 mm
$ 275.94
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ID: 4171901 pcs
thumb image of 13.7ct Oval Facet Golden Green Tourmaline (ID: 417190)
13.65 ct Tourmaline
15.9 x 12.9 mm
$ 2320.50
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ID: 3821041 pcs
thumb image of 13.9ct Octagon Step Cut Golden Apatite (ID: 382104)
13.92 ct Apatite
13.2 x 15.6 mm
$ 895.49
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ID: 4349171 pcs
thumb image of 13.7ct Pear Cabochon Gold Sheen Obsidian (ID: 434917)
13.69 ct Obsidian
22.8 x 14.3 mm
$ 13.69
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ID: 4349151 pcs
thumb image of 13.8ct Pear Cabochon Gold Sheen Obsidian (ID: 434915)
13.80 ct Obsidian
24.1 x 14.3 mm
$ 13.80
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ID: 4027891 pcs
thumb image of 13.1ct Octagon Step Cut Bi-color Tourmaline (ID: 402789)
13.13 ct Tourmaline
12.3 x 11.5 mm
$ 2109.50
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ID: 2715391 pcs
thumb image of 12.5ct Pear Cabochon Green Chrysoprase (ID: 271539)
12.50 ct Chrysoprase
16.2 x 13.6 mm
$ 56.25
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ID: 3335721 pcs
thumb image of 13.1ct Spherical Golden Pearl (ID: 333572)
13.07 ct Pearl
12.4 mm
$ 266.89
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ID: 4720321 pcs
thumb image of 13.9ct Oval Cabochon Bluish Green Fluorite (ID: 472032)
13.86 ct Fluorite
19.1 x 13.4 mm
$ 55.44
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ID: 4074851 pcs
thumb image of 13.9ct Round Carved Cameo White Mother of Pearl (ID: 407485)
13.91 ct Mother of Pearl
25.3 mm
$ 15.30
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ID: 4669591 pcs
thumb image of 13.3ct Drilled Sphere Blue Lapis Lazuli (ID: 466959)
13.32 ct Lapis Lazuli
12.1 mm
$ 13.32
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ID: 4720351 pcs
thumb image of 13.3ct Pear Cabochon Electric Blue Green Fluorite (ID: 472035)
13.31 ct Fluorite
19.1 x 14.6 mm
$ 53.24
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ID: 3358471 pcs
thumb image of 14ct Spherical Golden Pearl (ID: 335847)
13.97 ct Pearl
12.4 mm
$ 285.13
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ID: 4503751 pcs
thumb image of 13.8ct Octagon / Scissor Cut Light Blue Aquamarine (ID: 450375)
13.81 ct Aquamarine
18.4 x 10.3 mm
$ 2762.00
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ID: 4669581 pcs
thumb image of 13.1ct Drilled Sphere Blue Lapis Lazuli (ID: 466958)
13.12 ct Lapis Lazuli
12.1 mm
$ 13.12
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ID: 4183721 pcs
thumb image of 13ct Round Cabochon Cream Star Moonstone (ID: 418372)
13.02 ct Star Moonstone
14.5 mm
$ 52.08
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ID: 3853531 pcs
thumb image of 13ct Oval Cabochon Greenish Golden Cat's Eye Apatite (ID: 385353)
12.95 ct Cat's Eye Apatite
17.3 x 10.4 mm
$ 259.00
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ID: 4669381 pcs
thumb image of 13ct Drilled Sphere Blue Lapis Lazuli (ID: 466938)
13.04 ct Lapis Lazuli
12 mm
$ 13.04
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ID: 4669571 pcs
thumb image of 13ct Drilled Sphere Blue Lapis Lazuli (ID: 466957)
13.04 ct Lapis Lazuli
12 mm
$ 13.04
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13 Carat Gems
Buy gems by weight. Shop from our extensive range of beautiful, natural 13 carat gems. Browse the largest selection of natural loose colored gemstones available in 13 carats. Our large gemstone selection includes many popular gem types, such as amethyst, citrine, topaz and turquoise, and lesser-known gems, including rhodochrosite, ammolite and maw-sit-sit. 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 'tourmaline' to see all of our 13-carat tourmaline gems. Select 'multicolor' to shop for 13-carat multicolor 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