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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (346): Round Shape 6.5 mm Gems Clear All
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ID: 4329531 pcs
1.59ct Hessonite Garnet
6.35mm x 4.72mm
USD 20.35
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ID: 4388091 pcs
1.42ct Zircon
6.26mm x 4.27mm
USD 28.40
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ID: 4056091 pcs
1.33ct Zircon
6.40mm x 3.91mm
USD 32.89
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ID: 4373761 pcs
1.56ct Zircon
6.35mm x 4.71mm
USD 31.20
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ID: 4344011 pcs
1.71ct Zircon
6.62mm x 4.95mm
USD 34.20
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ID: 4333351 pcs
1.42ct Hessonite Garnet
6.35mm x 4.12mm
USD 18.18
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ID: 4331071 pcs
1.83ct Hessonite Garnet
6.76mm x 5.11mm
USD 23.42
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ID: 3806204 pcs
4.85ctw Zircon
6.26mm x 3.72mm
USD 78.57
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ID: 4245411 pcs
1.18ct Tanzanite
6.52mm x 4.44mm
USD 136.27
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ID: 4056052 pcs
3.07ctw Zircon
6.28mm x 4.71mm
USD 75.92
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ID: 4381113 pcs
3.15ctw Carnelian
6.28mm x 3.74mm
USD 12.60
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ID: 3861201 pcs
1.76ct Zircon
6.61mm x 5.14mm
USD 43.37
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ID: 4054682 pcs
3.50ctw Zircon
6.50mm x 4.85mm
USD 86.56
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ID: 3859712 pcs
3.54ctw Zircon
6.68mm x 4.72mm
USD 87.23
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ID: 3802772 pcs
2.89ctw Zircon
6.32mm x 4.07mm
USD 46.82
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ID: 3680892 pcs
3.09ctw Prehnite
6.50mm x 4.77mm
USD 15.33
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ID: 3803512 pcs
2.49ctw Zircon
6.44mm x 3.54mm
USD 40.34
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ID: 4055811 pcs
1.61ct Zircon
6.61mm x 4.52mm
USD 39.82
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ID: 4205251 pcs
1.00ct Tanzanite
6.44mm x 3.91mm
USD 120.00
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ID: 4310881 pcs
0.69ct Opal
6.43mm x 4.06mm
USD 13.80
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ID: 4370731 pcs
1.59ct Zircon
6.64mm x 4.60mm
USD 31.80
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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