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You Selected (925): Round Shape 8 mm Gems Clear All
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ID: 4372162 pcs
thumb image of 4ct Round Checkerboard Brown Smoky Quartz (ID: 437216)
4.01 ct Smoky Quartz
8 mm
$ 6.02
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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: 4401991 pcs
thumb image of 1.7ct Round Checkerboard Brown Smoky Quartz (ID: 440199)
1.68 ct Smoky Quartz
7.9 mm
$ 2.52
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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: 3986752 pcs
thumb image of 4ct Round Checkerboard Brown Smoky Quartz (ID: 398675)
3.98 ct Smoky Quartz
8.1 mm
$ 19.90
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ID: 4327292 pcs
thumb image of 4.5ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 432729)
4.54 ct Hessonite Garnet
8.1 mm
$ 69.50
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ID: 4009135 pcs
thumb image of 8.5ct Round Checkerboard Brown Smoky Quartz (ID: 400913)
8.45 ct Smoky Quartz
8.1 mm
$ 21.12
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ID: 4374501 pcs
thumb image of 1.7ct Round Checkerboard Brown Smoky Quartz (ID: 437450)
1.70 ct Smoky Quartz
7.8 mm
$ 2.55
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ID: 4375352 pcs
thumb image of 3.7ct Round Checkerboard Brown Smoky Quartz (ID: 437535)
3.72 ct Smoky Quartz
8.2 mm
$ 5.58
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ID: 4401901 pcs
thumb image of 1.7ct Round Checkerboard Brown Smoky Quartz (ID: 440190)
1.72 ct Smoky Quartz
7.9 mm
$ 2.58
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ID: 4558011 pcs
thumb image of 2.2ct Round Facet Sky Blue Topaz (ID: 455801)
2.21 ct Topaz
8.1 mm
$ 15.47
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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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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: 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: 4481472 pcs
thumb image of 3.8ct Round Checkerboard Brown Smoky Quartz (ID: 448147)
3.79 ct Smoky Quartz
8 mm
$ 15.16
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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: 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: 4398192 pcs
thumb image of 4ct Round Checkerboard Brown Smoky Quartz (ID: 439819)
3.98 ct Smoky Quartz
8 mm
$ 5.97
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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: 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: 4371232 pcs
thumb image of 3.7ct Round Checkerboard Brown Smoky Quartz (ID: 437123)
3.67 ct Smoky Quartz
8.2 mm
$ 5.50
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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