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ID: 4139681 pcs
thumb image of 18.8ct Oval Cabochon Cream Star Moonstone (ID: 413968)
18.80 ct Star Moonstone
15.6 x 14 mm
$ 75.20
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ID: 3832741 pcs
thumb image of 19.7ct Cushion-Cut Green/Pink Color-Change Diaspore (ID: 383274)
19.71 ct Color-Change Diaspore
18.9 x 12.3 mm
$ 6732.77
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ID: 3815591 pcs
thumb image of 19.9ct Round Facet Green/Pink Color-Change Diaspore (ID: 381559)
19.90 ct Color-Change Diaspore
15.4 mm
$ 6500.92
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ID: 3924301 pcs
thumb image of 19.2ct Asscher Cut Pink Rose Quartz (ID: 392430)
19.20 ct Rose Quartz
16.2 x 15.9 mm
$ 96.00
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ID: 3933201 pcs
thumb image of 18.6ct Asscher Cut Pink Rose Quartz (ID: 393320)
18.64 ct Rose Quartz
16.1 x 16.1 mm
$ 93.20
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ID: 4485901 pcs
thumb image of 19.1ct Oval Cabochon Violet Charoite (ID: 448590)
19.09 ct Charoite
25.1 x 18.2 mm
$ 28.64
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ID: 3102691 pcs
thumb image of 18.7ct Oval Facet Yellow Golden Zircon (ID: 310269)
18.67 ct Zircon
15.9 x 12.5 mm
$ 1540.28
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ID: 4711041 pcs
thumb image of 19.3ct Trillion Cabochon Multicolor Sugilite (ID: 471104)
19.29 ct Sugilite
23.1 x 16.3 mm
$ 96.26
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ID: 3776311 pcs
thumb image of 19.8ct Fancy Cabochon Multicolor Ammolite (ID: 377631)
19.82 ct Ammolite
24.7 x 23.3 mm
$ 748.01
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ID: 4712431 pcs
thumb image of 19.9ct Cushion Cabochon Multicolor Sugilite (ID: 471243)
19.90 ct Sugilite
19.8 x 15.3 mm
$ 99.30
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ID: 4536031 pcs
thumb image of 19.8ct Fancy Cabochon Multicolor Ammolite (ID: 453603)
19.80 ct Ammolite
27.1 x 17.1 mm
$ 732.60
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ID: 4593641 pcs
thumb image of 19ct Oval Portuguese-Cut Bi-color Ametrine (ID: 459364)
19.00 ct Ametrine
19.7 x 13.6 mm
$ 209.00
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ID: 4711001 pcs
thumb image of 18.7ct Trillion Cabochon Multicolor Sugilite (ID: 471100)
18.69 ct Sugilite
22.8 x 17.5 mm
$ 93.26
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ID: 3776341 pcs
thumb image of 19.3ct Fancy Cabochon Multicolor Ammolite (ID: 377634)
19.27 ct Ammolite
25.7 x 16.5 mm
$ 727.25
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ID: 3932271 pcs
thumb image of 19.9ct Round Cabochon Violet Amethyst (ID: 393227)
19.94 ct Amethyst
17.9 mm
$ 99.70
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ID: 3776321 pcs
thumb image of 19.2ct Fancy Cabochon Multicolor Ammolite (ID: 377632)
19.21 ct Ammolite
31.3 x 14.6 mm
$ 724.99
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ID: 3914631 pcs
thumb image of 19.9ct Round Cabochon Violet Amethyst (ID: 391463)
19.86 ct Amethyst
18 mm
$ 99.30
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ID: 4535691 pcs
thumb image of 19.3ct Shark Fin Cabochon Multicolor Ammolite (ID: 453569)
19.31 ct Ammolite
31.7 x 14.4 mm
$ 714.47
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ID: 3932231 pcs
thumb image of 19.8ct Round Cabochon Violet Amethyst (ID: 393223)
19.82 ct Amethyst
18 mm
$ 99.10
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ID: 3342421 pcs
thumb image of 18.6ct Oval Cabochon Pink Rose Quartz (ID: 334242)
18.64 ct Rose Quartz
18.2 x 13.1 mm
$ 22.74
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ID: 3774591 pcs
thumb image of 18.6ct Fancy Cabochon Multicolor Ammolite (ID: 377459)
18.60 ct Ammolite
34.4 x 12.7 mm
$ 701.96
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19 Carat Gems
Shop from our extensive range of beautiful, natural 19-carat gems. Browse the largest selection of natural loose colored gemstones available in 19 carats. Our large gemstone selection includes many popular gem types, such as moonstone, ametrine, topaz and turquoise, and lesser-known gems, including rainbow pyrite, ammolite and maw-sit-sit. Large, natural 19-carat gems are perfect for making statement jewelry, such as oversized pendants and other jewelry designs. 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 'seraphinite' to see all of our 19-carat seraphinite gems. Select 'black' to shop for 19-carat black 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