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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (10): Cushion Cut 8x6 mm Gems Clear All
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ID: 2902041 pcs
thumb image of 1.4ct Cushion-Cut Violet Blue Tanzanite (ID: 290204)
1.39 ct Tanzanite
8 x 6 mm
$ 176.53
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ID: 2959461 pcs
thumb image of 1.3ct Cushion-Cut Bluish Violet Tanzanite (ID: 295946)
1.28 ct Tanzanite
8.1 x 6 mm
$ 172.80
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ID: 4477281 pcs
thumb image of 1.8ct Cushion-Cut Purple Sapphire (ID: 447728)
1.76 ct Sapphire
8 x 6.2 mm
$ 847.16
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ID: 4380121 pcs
thumb image of 2.2ct Cushion-Cut Lively Green Peridot (ID: 438012)
2.22 ct Peridot
8 x 6.2 mm
$ 77.70
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ID: 4470081 pcs
thumb image of 1.9ct Cushion-Cut Lively Green Peridot (ID: 447008)
1.87 ct Peridot
7.9 x 6.1 mm
$ 66.95
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ID: 2950411 pcs
thumb image of 1.4ct Cushion-Cut Violet Blue Tanzanite (ID: 295041)
1.40 ct Tanzanite
8.1 x 5.9 mm
$ 207.75
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ID: 3474991 pcs
thumb image of 1.5ct Cushion-Cut Violet Blue Tanzanite (ID: 347499)
1.50 ct Tanzanite
8 x 6.1 mm
$ 220.50
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ID: 4469471 pcs
thumb image of 2.1ct Cushion-Cut Lively Green Peridot (ID: 446947)
2.05 ct Peridot
8.1 x 6.2 mm
$ 73.39
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ID: 3964191 pcs
thumb image of 1.1ct Cushion-Cut Green/Pink Color-Change Diaspore (ID: 396419)
1.14 ct Color-Change Diaspore
7.8 x 6 mm
$ 54.45
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ID: 2805271 pcs
thumb image of 1.3ct Cushion-Cut Violet Blue Tanzanite (ID: 280527)
1.25 ct Tanzanite
8.1 x 6 mm
$ 158.75
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Cushion Cut 8x6 mm Gems
Some people by gems by color or price, but for many, it is best to buy gems by size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated cushion shapes, facet cut and cabochon gems available now in 8 mm x 6 mm 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 meant nor 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