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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (334): Round Shape 6.5 mm Gems Clear All
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ID: 3802772 pcs
2.89ctw Zircon
6.32 x 4.07mm
USD 46.82
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ID: 4104274 pcs
4.54ctw Sillimanite Cat's Eye
6.40 x 3.27mm
USD 16.43
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ID: 4413271 pcs
0.99ct Tourmaline
6.29 x 4.06mm
USD 19.57
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ID: 4054682 pcs
3.50ctw Zircon
6.50 x 4.85mm
USD 86.56
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ID: 4054652 pcs
2.99ctw Zircon
6.38 x 4.53mm
USD 73.94
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ID: 4319931 pcs
0.79ct Opal
6.29 x 4.00mm
USD 22.12
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ID: 3820911 pcs
1.01ct Diamond
6.32 x 3.88mm
USD 2153.23
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ID: 4370631 pcs
1.69ct Zircon
6.74 x 4.59mm
USD 33.80
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ID: 4205251 pcs
1.00ct Tanzanite
6.44 x 3.91mm
USD 120.00
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ID: 4345911 pcs
1.53ct Zircon
6.60 x 4.49mm
USD 30.60
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ID: 3558011 pcs
1.52ct Zircon
6.45 x 4.67mm
USD 38.00
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ID: 4343411 pcs
1.67ct Zircon
6.65 x 4.66mm
USD 33.40
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ID: 4375011 pcs
1.07ct Zircon
6.50 x 4.60mm
USD 21.40
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ID: 4388091 pcs
1.42ct Zircon
6.26 x 4.27mm
USD 28.40
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ID: 4373741 pcs
1.61ct Zircon
6.38 x 4.82mm
USD 32.20
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ID: 3806691 pcs
1.67ct Zircon
6.68 x 4.29mm
USD 27.05
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ID: 3785911 pcs
1.86ct Zircon
6.60 x 4.40mm
USD 46.35
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ID: 4376421 pcs
1.50ct Zircon
6.56 x 4.26mm
USD 30.00
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ID: 3832591 pcs
1.68ct Zircon
6.65 x 4.51mm
USD 35.87
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ID: 4386841 pcs
1.47ct Zircon
6.39 x 4.50mm
USD 29.40
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ID: 4379241 pcs
0.89ct Carnelian
6.24 x 3.47mm
USD 3.56
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Round Shape 6.5 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 6.5 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