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You Selected (545): Round Shape 8 mm Gems Clear All
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ID: 4176002 pcs
thumb image of 4.1ct Round Checkerboard (double sided) Lemon Quartz (ID: 417600)
4.11 ct Quartz
8.1 mm
$ 8.22
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ID: 3987102 pcs
thumb image of 3.4ct Round Checkerboard Brown Smoky Quartz (ID: 398710)
3.36 ct Smoky Quartz
7.9 mm
$ 16.80
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ID: 3986792 pcs
thumb image of 3.5ct Round Checkerboard Brown Smoky Quartz (ID: 398679)
3.47 ct Smoky Quartz
8 mm
$ 17.35
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ID: 3207524 pcs
thumb image of 13.7ct Drilled Sphere Silver Pink Pearl (ID: 320752)
13.73 ct Pearl
7.9 mm
$ 75.52
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ID: 4009124 pcs
thumb image of 5.6ct Round Checkerboard Brown Smoky Quartz (ID: 400912)
5.59 ct Smoky Quartz
7.9 mm
$ 13.98
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ID: 4230146 pcs
thumb image of 21.1ct Drilled Sphere Multicolor Rutile Quartz (ID: 423014)
21.11 ct Rutile Quartz
8 mm
$ 21.11
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ID: 4284112 pcs
thumb image of 3.9ct Round Checkerboard Brown Smoky Quartz (ID: 428411)
3.93 ct Smoky Quartz
8 mm
$ 7.86
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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: 4285202 pcs
thumb image of 3.7ct Round Checkerboard Brown Smoky Quartz (ID: 428520)
3.72 ct Smoky Quartz
8.1 mm
$ 7.44
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ID: 4008185 pcs
thumb image of 8.5ct Round Checkerboard Brown Smoky Quartz (ID: 400818)
8.53 ct Smoky Quartz
8.1 mm
$ 21.32
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ID: 4279672 pcs
thumb image of 3ct Round Checkerboard Brown Smoky Quartz (ID: 427967)
3.02 ct Smoky Quartz
7.9 mm
$ 6.04
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ID: 3345192 pcs
thumb image of 7ct Drilled Sphere Silver Pink Pearl (ID: 334519)
6.99 ct Pearl
7.9 mm
$ 34.95
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ID: 4284742 pcs
thumb image of 3.5ct Round Checkerboard Brown Smoky Quartz (ID: 428474)
3.54 ct Smoky Quartz
8 mm
$ 7.08
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ID: 3207474 pcs
thumb image of 13.7ct Drilled Sphere Pink Pearl (ID: 320747)
13.66 ct Pearl
7.9 mm
$ 75.13
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ID: 4374471 pcs
thumb image of 1.8ct Round Checkerboard Brown Smoky Quartz (ID: 437447)
1.83 ct Smoky Quartz
8 mm
$ 2.74
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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: 3987134 pcs
thumb image of 7.8ct Round Checkerboard Brown Smoky Quartz (ID: 398713)
7.78 ct Smoky Quartz
8.1 mm
$ 19.45
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ID: 4000512 pcs
thumb image of 3ct Round Checkerboard Brown Smoky Quartz (ID: 400051)
3.03 ct Smoky Quartz
8 mm
$ 21.21
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ID: 4401941 pcs
thumb image of 1.8ct Round Checkerboard Brown Smoky Quartz (ID: 440194)
1.84 ct Smoky Quartz
8.2 mm
$ 2.76
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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: 4284062 pcs
thumb image of 3.8ct Round Checkerboard Brown Smoky Quartz (ID: 428406)
3.82 ct Smoky Quartz
8.2 mm
$ 7.64
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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