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You Selected (339): 16 Carat Gems Clear All
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ID: 4279751 pcs
thumb image of 16.4ct Round Cabochon Grayish Blue Pietersite (ID: 427975)
16.41 ct Pietersite
18.1 mm
$ 57.44
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ID: 4485461 pcs
thumb image of 15.8ct Oval Cabochon Violet Charoite (ID: 448546)
15.81 ct Charoite
23.5 x 18.2 mm
$ 23.72
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ID: 4032061 pcs
thumb image of 16.1ct Oval Cabochon Blue Hemimorphite (ID: 403206)
16.08 ct Hemimorphite
18.2 x 12.6 mm
$ 342.18
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ID: 4523061 pcs
thumb image of 16.2ct Oval Cabochon Violet Charoite (ID: 452306)
16.24 ct Charoite
25.1 x 18.2 mm
$ 24.36
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ID: 3807121 pcs
thumb image of 16.9ct Cushion Cabochon Pink Smithsonite (ID: 380712)
16.90 ct Smithsonite
14.5 x 13.2 mm
$ 455.29
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ID: 3950841 pcs
thumb image of 16.2ct Carved Rabbit Cinnamon Orange Hessonite Garnet (ID: 395084)
16.22 ct Hessonite Garnet
15.4 x 13.4 mm
$ 48.66
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ID: 3914041 pcs
thumb image of 16.7ct Pear Crystal Cluster Multicolor Rainbow Pyrite (ID: 391404)
16.71 ct Rainbow Pyrite
28.3 x 14.9 mm
$ 50.13
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ID: 4521431 pcs
thumb image of 16.4ct Oval Cabochon Violet Charoite (ID: 452143)
16.36 ct Charoite
22.3 x 16 mm
$ 24.54
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ID: 3375481 pcs
thumb image of 16.8ct Octagon / Scissor Cut Blue Zircon (ID: 337548)
16.80 ct Zircon
17 x 9.4 mm
$ 5078.84
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ID: 4622141 pcs
thumb image of 16.8ct Oval Cabochon White Opal (ID: 462214)
16.83 ct Opal
20.8 x 16.6 mm
$ 677.58
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ID: 4074831 pcs
thumb image of 16ct Round Carved Cameo White Mother of Pearl (ID: 407483)
16.01 ct Mother of Pearl
25.2 mm
$ 17.61
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ID: 4672101 pcs
thumb image of 16.7ct Oval Cabochon Violet Charoite (ID: 467210)
16.71 ct Charoite
25.4 x 18.3 mm
$ 25.07
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ID: 4076021 pcs
thumb image of 16.1ct Round Carved Cameo White Mother of Pearl (ID: 407602)
16.13 ct Mother of Pearl
25 mm
$ 17.74
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ID: 4170271 pcs
thumb image of 16.9ct Oval Cabochon Cream Star Moonstone (ID: 417027)
16.91 ct Star Moonstone
15.7 x 13.7 mm
$ 67.64
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ID: 2621091 pcs
thumb image of 15.9ct Oval Cabochon Orange Cream Star Moonstone (ID: 262109)
15.93 ct Star Moonstone
14.2 x 13.4 mm
$ 63.72
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ID: 4065061 pcs
thumb image of 16.1ct Trillion Facet Pink Kunzite (ID: 406506)
16.13 ct Kunzite
17.6 x 13.9 mm
$ 682.94
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ID: 4061121 pcs
thumb image of 15.8ct Oval Facet Pink Kunzite (ID: 406112)
15.76 ct Kunzite
14.8 x 13.7 mm
$ 672.01
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ID: 4076071 pcs
thumb image of 16.5ct Round Carved Cameo White Mother of Pearl (ID: 407607)
16.47 ct Mother of Pearl
25 mm
$ 18.12
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ID: 3804061 pcs
thumb image of 15.9ct Pear Cabochon Yellow Fire Opal (ID: 380406)
15.86 ct Fire Opal
28.8 x 14.2 mm
$ 342.73
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ID: 4043921 pcs
thumb image of 15.5ct Oval Cabochon Green Chrysoprase (ID: 404392)
15.51 ct Chrysoprase
18.4 x 15.2 mm
$ 62.04
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ID: 3921821 pcs
thumb image of 16.9ct Asscher Cut Pink Rose Quartz (ID: 392182)
16.88 ct Rose Quartz
15.9 x 15.8 mm
$ 84.40
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16 Carat Gems
Buy gems by weight. Shop from our extensive range of beautiful, natural 16-carat gems. Browse the largest selection of natural loose colored gemstones available in 16 carats. Our large gemstone selection includes many popular gem types, such as amethyst, citrine, topaz and turquoise, and lesser-known gems, including ruby-zoisite, 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 16-carat tourmaline gems. Select 'multicolor' to shop for 16-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