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You Selected (893): Round Shape 8 mm Gems Clear All
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ID: 4230236 pcs
thumb image of 22ct Drilled Sphere Multicolor Rutile Quartz (ID: 423023)
22.04 ct Rutile Quartz
8.1 mm
$ 22.04
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ID: 3207454 pcs
thumb image of 13.7ct Drilled Sphere Pink Pearl (ID: 320745)
13.68 ct Pearl
7.9 mm
$ 75.24
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ID: 4400641 pcs
thumb image of 1.7ct Round Checkerboard Brown Smoky Quartz (ID: 440064)
1.73 ct Smoky Quartz
8.1 mm
$ 2.60
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ID: 4429582 pcs
thumb image of 3.6ct Round Checkerboard Brown Smoky Quartz (ID: 442958)
3.62 ct Smoky Quartz
7.9 mm
$ 7.24
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ID: 4403631 pcs
thumb image of 1.7ct Round Checkerboard Brown Smoky Quartz (ID: 440363)
1.73 ct Smoky Quartz
7.9 mm
$ 2.60
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ID: 3497052 pcs
thumb image of 6.9ct Drilled Sphere Silver Pink Pearl (ID: 349705)
6.88 ct Pearl
7.8 mm
$ 34.40
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ID: 4431664 pcs
thumb image of 6.6ct Round Checkerboard Brown Smoky Quartz (ID: 443166)
6.57 ct Smoky Quartz
8 mm
$ 13.14
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ID: 4374481 pcs
thumb image of 1.8ct Round Checkerboard Brown Smoky Quartz (ID: 437448)
1.76 ct Smoky Quartz
8 mm
$ 2.64
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ID: 3496582 pcs
thumb image of 7ct Drilled Sphere Silver Pink Pearl (ID: 349658)
6.95 ct Pearl
8.1 mm
$ 34.75
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ID: 4279572 pcs
thumb image of 3.7ct Round Checkerboard Brown Smoky Quartz (ID: 427957)
3.71 ct Smoky Quartz
8.1 mm
$ 7.42
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ID: 4374561 pcs
thumb image of 1.8ct Round Checkerboard Brown Smoky Quartz (ID: 437456)
1.76 ct Smoky Quartz
7.9 mm
$ 2.64
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ID: 4280812 pcs
thumb image of 3.6ct Round Checkerboard Brown Smoky Quartz (ID: 428081)
3.56 ct Smoky Quartz
8 mm
$ 7.12
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ID: 4007303 pcs
thumb image of 5ct Round Checkerboard Brown Smoky Quartz (ID: 400730)
5.01 ct Smoky Quartz
8 mm
$ 12.52
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ID: 3207434 pcs
thumb image of 13.5ct Drilled Sphere Cream Pink Pearl (ID: 320743)
13.51 ct Pearl
7.9 mm
$ 67.55
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ID: 4402881 pcs
thumb image of 1.8ct Round Checkerboard Brown Smoky Quartz (ID: 440288)
1.77 ct Smoky Quartz
8 mm
$ 2.66
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ID: 4430882 pcs
thumb image of 3.7ct Round Checkerboard Brown Smoky Quartz (ID: 443088)
3.70 ct Smoky Quartz
8 mm
$ 7.40
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ID: 3496622 pcs
thumb image of 7.1ct Drilled Sphere Pink Pearl (ID: 349662)
7.10 ct Pearl
8 mm
$ 35.50
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ID: 4483271 pcs
thumb image of 1.5ct Round Checkerboard Brown Smoky Quartz (ID: 448327)
1.53 ct Smoky Quartz
7.9 mm
$ 6.12
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ID: 4429592 pcs
thumb image of 3.8ct Round Checkerboard Brown Smoky Quartz (ID: 442959)
3.83 ct Smoky Quartz
8.1 mm
$ 7.66
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ID: 4403601 pcs
thumb image of 1.8ct Round Checkerboard Brown Smoky Quartz (ID: 440360)
1.80 ct Smoky Quartz
8 mm
$ 2.70
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ID: 4375302 pcs
thumb image of 4.1ct Round Checkerboard Brown Smoky Quartz (ID: 437530)
4.05 ct Smoky Quartz
8.1 mm
$ 6.07
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Round Shape 8 mm Gems
Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Round shapes, facet cut and cabochon gems available now in 8 mm diameter size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often around 0.3 mm or slightly higher even. This small variance can usually be accommodated for standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

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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