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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (424): Round Amethyst Gems Amethyst Clear All
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ID: 3925921 pcs
thumb image of 7.5ct Round Cabochon Violet Amethyst (ID: 392592)
7.48 ct Amethyst
13.2 mm
$ 37.40
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ID: 4595081 pcs
thumb image of 4.1ct Round Facet Violet Amethyst (ID: 459508)
4.09 ct Amethyst
11.1 mm
$ 24.54
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ID: 4594371 pcs
thumb image of 4.2ct Round Facet Violet Amethyst (ID: 459437)
4.17 ct Amethyst
10.9 mm
$ 25.02
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ID: 3914671 pcs
thumb image of 21.2ct Round Cabochon Violet Amethyst (ID: 391467)
21.15 ct Amethyst
18 mm
$ 148.05
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ID: 4612021 pcs
thumb image of 3.4ct Round Facet Violet Amethyst (ID: 461202)
3.44 ct Amethyst
10.1 mm
$ 24.08
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ID: 3632591 pcs
thumb image of 20.9ct Round Cabochon Purple Amethyst (ID: 363259)
20.85 ct Amethyst
18 mm
$ 145.95
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ID: 4607921 pcs
thumb image of 3.1ct Round Facet Violet Amethyst (ID: 460792)
3.05 ct Amethyst
9.9 mm
$ 21.35
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ID: 3632641 pcs
thumb image of 20.4ct Round Cabochon Purple Amethyst (ID: 363264)
20.41 ct Amethyst
18.1 mm
$ 142.87
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ID: 3914631 pcs
thumb image of 19.9ct Round Cabochon Violet Amethyst (ID: 391463)
19.86 ct Amethyst
18 mm
$ 139.02
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ID: 3632111 pcs
thumb image of 18.9ct Round Cabochon Purple Amethyst (ID: 363211)
18.85 ct Amethyst
17.1 mm
$ 131.95
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ID: 3933481 pcs
thumb image of 25.2ct Round Cabochon Violet Amethyst (ID: 393348)
25.15 ct Amethyst
18 mm
$ 125.75
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ID: 3697461 pcs
thumb image of 2.9ct Round Cabochon Violet Amethyst (ID: 369746)
2.89 ct Amethyst
8.4 mm
$ 14.45
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ID: 3933451 pcs
thumb image of 23.4ct Round Cabochon Violet Amethyst (ID: 393345)
23.40 ct Amethyst
18.9 mm
$ 117.00
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ID: 3932211 pcs
thumb image of 22.8ct Round Cabochon Violet Amethyst (ID: 393221)
22.81 ct Amethyst
18.9 mm
$ 114.05
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ID: 3932251 pcs
thumb image of 20.1ct Round Cabochon Violet Amethyst (ID: 393225)
20.07 ct Amethyst
18.7 mm
$ 100.35
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ID: 3630802 pcs
thumb image of 4.4ct Round Cabochon Purple Amethyst (ID: 363080)
4.43 ct Amethyst
7.9 mm
$ 22.15
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ID: 4223424 pcs
thumb image of 2.6ct Round Facet Violet Amethyst (ID: 422342)
2.64 ct Amethyst
5.8 mm
$ 13.20
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ID: 3925172 pcs
thumb image of 20ct Round Cabochon Violet Amethyst (ID: 392517)
19.98 ct Amethyst
13.3 mm
$ 99.90
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ID: 3768381 pcs
thumb image of 2.2ct Round Cabochon Purple Amethyst (ID: 376838)
2.22 ct Amethyst
8.2 mm
$ 15.54
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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: 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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Round Amethyst Gems
Crystalline quartz in colors ranging from green to pale lilac to deep reddish purple and ranging from transparent to translucent is known as amethyst. Value per carat in amethyst, unlike many gems, doesn't rise exponentially with weight as it is readily available in large sizes; but depends almost entirely on color. The "Siberian" deep purple with red and blue flash commands the highest prices. Green amethyst, new to the market, is produced by heat treatment.

Round amethyst gems are available in singles, matched pairs and gem lots. Round amethyst gems are perfect for any jewelry design, whether they are used as center stones or accent stones. Choose from various round amethyst gems in calibrated sizes. Use the search filters at the top of the page to find the perfect round amethyst gems by size, carat weight, price or origin. The tick boxes will direct you to singles, pairs, lots, faceted gems or cabs.
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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