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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (4972): Quartz Cabochons Onyx, Amethyst, Ametrine, Smoky Quartz, Citrine, Quartz, Rose Quartz, Chalcedony, Jasper, Mystic Quartz, Agate, Aventurine, Rutile Quartz, Tiger's Eye, Star Rose Quartz, Fire Agate, Dendritic Agate, Carnelian, Bloodstones, Quartz Cat's Eye, Agate Geode, Tiger's Eye Matrix, Peanut Wood, Dumortierite Quartz, Pietersite, Star Lemon Quartz, Dendritic Chalcedony, Hawk's Eye, Amethyst Geode, Citrine Geode Clear All
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ID: 2169221 pcs
thumb image of 10ct Fancy Cabochon Multicolor Fire Agate (ID: 216922)
10.02 ct Fire Agate
26.4 x 9.7 mm
$ 120.24
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ID: 4578911 pcs
thumb image of 187.1ct Oval Cabochon Green Agate (ID: 457891)
187.05 ct Agate
45.8 x 42 mm
$ 187.05
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ID: 4482994 pcs
thumb image of 19.5ct Oval Cabochon Multicolor Pietersite (ID: 448299)
19.49 ct Pietersite
14.1 x 10.1 mm
$ 58.47
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ID: 3707471 pcs
thumb image of 8.6ct Oval Cabochon Multicolor Jasper (ID: 370747)
8.63 ct Jasper
16.9 x 14.4 mm
$ 8.63
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ID: 4491051 pcs
thumb image of 160.1ct Oval Cabochon Colorless Golden Rutile Quartz (ID: 449105)
160.11 ct Rutile Quartz
51.4 x 33.4 mm
$ 400.28
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ID: 4437241 pcs
thumb image of 2.4ct Oval Cabochon Green Agate (ID: 443724)
2.40 ct Agate
9.1 x 7.7 mm
$ 2.38
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ID: 3338251 pcs
thumb image of 68.1ct Oval Cabochon Grayish Blue Pietersite (ID: 333825)
68.06 ct Pietersite
47 x 29.4 mm
$ 272.24
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ID: 4033261 pcs
thumb image of 36.6ct Round Cabochon Blue Dumortierite Quartz (ID: 403326)
36.63 ct Dumortierite Quartz
19.7 mm
$ 116.85
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ID: 4482801 pcs
thumb image of 3.9ct Oval Cabochon Multicolor Pietersite (ID: 448280)
3.89 ct Pietersite
14.1 x 10 mm
$ 11.67
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ID: 4363061 pcs
thumb image of 1.4ct Marquise Cabochon Colorless Golden Rutile Quartz (ID: 436306)
1.41 ct Rutile Quartz
9.8 x 5.1 mm
$ 3.47
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ID: 3658582 pcs
thumb image of 6.1ct Oval Cabochon Purple Amethyst (ID: 365858)
6.14 ct Amethyst
9.9 x 7.8 mm
$ 18.42
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ID: 3329181 pcs
thumb image of 18.9ct Oval Cabochon Pink Rose Quartz (ID: 332918)
18.94 ct Rose Quartz
16.8 x 15.5 mm
$ 22.73
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ID: 4033851 pcs
thumb image of 10.5ct Round Cabochon Colorless Golden Rutile Quartz (ID: 403385)
10.53 ct Rutile Quartz
13.2 mm
$ 33.38
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ID: 3707441 pcs
thumb image of 9.4ct Oval Cabochon Multicolor Jasper (ID: 370744)
9.41 ct Jasper
16.6 x 12.9 mm
$ 9.41
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ID: 4580571 pcs
thumb image of 98.6ct Oval Cabochon Green Agate (ID: 458057)
98.60 ct Agate
36.7 x 28.4 mm
$ 98.60
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ID: 4573184 pcs
thumb image of 17.1ct Oval Cabochon Multicolor Pietersite (ID: 457318)
17.12 ct Pietersite
14 x 10 mm
$ 39.89
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ID: 3338211 pcs
thumb image of 38.9ct Cushion Cabochon Grayish Blue Pietersite (ID: 333821)
38.93 ct Pietersite
36.2 x 23.7 mm
$ 155.72
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ID: 4373321 pcs
thumb image of 1.6ct Oval Cabochon Green Agate (ID: 437332)
1.60 ct Agate
7.9 x 6.3 mm
$ 2.40
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ID: 4568261 pcs
thumb image of 22.8ct Oval Cabochon Green Agate (ID: 456826)
22.81 ct Agate
21.8 x 18.1 mm
$ 11.18
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ID: 4482721 pcs
thumb image of 3.9ct Oval Cabochon Multicolor Pietersite (ID: 448272)
3.90 ct Pietersite
14 x 10 mm
$ 11.70
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ID: 4094172 pcs
thumb image of 7ct Oval Cabochon Violet Amethyst (ID: 409417)
7.01 ct Amethyst
11.2 x 9.1 mm
$ 25.31
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Quartz Cabochons
Quartz is one of the most common minerals on earth, and is well known in the gems world in its many forms - amethyst, citrine, ametrine, smoky quartz, rose quartz and lemon quartz. Quartz is attractive and durable, as well as inexpensive. It can be cut and carved in many forms and sizes.

There are 2 main varieties of quartz, including both crystalline and cryptocrystalline quartz. Crystalline quartz occurs in distinct transparent crystals, such as in amethyst and citrine. In cryptocrystalline quartz, the crystals are microscopic and the quartz is opaque or translucent. Examples include chalcedony and agate.

Shop from a wide variety of quartz gemstones of almost all colors of the rainbow. Choose cabochon quartz gems, including calibrated sized single gems, matched pairs and gem lots by using the tick boxes at the top of the page. All photos are of actual gemstones that are available and ready to ship.
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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