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You Selected (963): Round Shape 8 mm Gems Clear All
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ID: 4751442 pcs
thumb image of 3.5ct Round Facet Red Strawberry Quartz (ID: 475144)
3.47 ct Strawberry Quartz
8.1 mm
$ 24.29
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ID: 4748541 pcs
thumb image of 1.3ct Round Facet Red Strawberry Quartz (ID: 474854)
1.33 ct Strawberry Quartz
7.9 mm
$ 9.31
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ID: 4284752 pcs
thumb image of 3.6ct Round Checkerboard Brown Smoky Quartz (ID: 428475)
3.63 ct Smoky Quartz
8 mm
$ 7.26
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ID: 3051922 pcs
thumb image of 4ct Round Checkerboard Green Prehnite (ID: 305192)
3.98 ct Prehnite
8.1 mm
$ 19.90
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ID: 4285982 pcs
thumb image of 4.1ct Round Checkerboard Brown Smoky Quartz (ID: 428598)
4.14 ct Smoky Quartz
8 mm
$ 8.28
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ID: 4700681 pcs
thumb image of 3.8ct Drilled Sphere Colorless Black Rutile Quartz (ID: 470068)
3.78 ct Rutile Quartz
8.2 mm
$ 3.97
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ID: 4739552 pcs
thumb image of 4ct Round Facet Red Strawberry Quartz (ID: 473955)
3.96 ct Strawberry Quartz
8.2 mm
$ 27.72
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ID: 4371292 pcs
thumb image of 3.8ct Round Checkerboard Brown Smoky Quartz (ID: 437129)
3.77 ct Smoky Quartz
7.9 mm
$ 5.66
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ID: 4739572 pcs
thumb image of 3.4ct Round Facet Red Strawberry Quartz (ID: 473957)
3.44 ct Strawberry Quartz
8 mm
$ 24.08
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ID: 4403621 pcs
thumb image of 1.9ct Round Checkerboard Brown Smoky Quartz (ID: 440362)
1.89 ct Smoky Quartz
7.9 mm
$ 2.84
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ID: 4428802 pcs
thumb image of 3.6ct Round Checkerboard Brown Smoky Quartz (ID: 442880)
3.59 ct Smoky Quartz
7.9 mm
$ 7.18
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ID: 4751422 pcs
thumb image of 3.9ct Round Facet Red Strawberry Quartz (ID: 475142)
3.93 ct Strawberry Quartz
7.9 mm
$ 27.51
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ID: 4745831 pcs
thumb image of 1.9ct Round Facet Red Strawberry Quartz (ID: 474583)
1.94 ct Strawberry Quartz
8.1 mm
$ 13.58
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ID: 4230256 pcs
thumb image of 21.4ct Drilled Sphere Multicolor Rutile Quartz (ID: 423025)
21.41 ct Rutile Quartz
8 mm
$ 21.41
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ID: 3988002 pcs
thumb image of 3.6ct Round Checkerboard Brown Smoky Quartz (ID: 398800)
3.56 ct Smoky Quartz
8 mm
$ 24.92
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ID: 4739622 pcs
thumb image of 3.4ct Round Facet Red Strawberry Quartz (ID: 473962)
3.38 ct Strawberry Quartz
8 mm
$ 23.66
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ID: 4750681 pcs
thumb image of 1.5ct Round Facet Red Strawberry Quartz (ID: 475068)
1.54 ct Strawberry Quartz
7.9 mm
$ 10.78
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ID: 4741091 pcs
thumb image of 1.9ct Round Facet Red Strawberry Quartz (ID: 474109)
1.92 ct Strawberry Quartz
8.1 mm
$ 13.44
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ID: 4777211 pcs
thumb image of 3.2ct Round Cabochon Green Maw-Sit-Sit (ID: 477721)
3.18 ct Maw-Sit-Sit
8.2 mm
$ 6.77
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ID: 4555982 pcs
thumb image of 4.8ct Round Facet Sky Blue Topaz (ID: 455598)
4.81 ct Topaz
8.2 mm
$ 33.67
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ID: 4372092 pcs
thumb image of 3.8ct Round Checkerboard Brown Smoky Quartz (ID: 437209)
3.78 ct Smoky Quartz
7.9 mm
$ 5.67
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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