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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (335): Round Shape 6.5 mm Gems Clear All
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ID: 4383162 pcs
2.93ctw Zircon
6.55 x 4.39mm
USD 58.60
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ID: 4056291 pcs
1.35ct Zircon
6.40 x 4.11mm
USD 33.39
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ID: 4372501 pcs
1.66ct Zircon
6.64 x 4.75mm
USD 33.20
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ID: 3780971 pcs
2.36ct Zircon
6.55 x 5.19mm
USD 63.39
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ID: 4203652 pcs
2.19ctw Tanzanite
6.57 x 4.05mm
USD 262.80
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ID: 3857882 pcs
3.22ctw Zircon
6.47 x 4.76mm
USD 79.34
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ID: 3685924 pcs
5.38ctw Prehnite
6.61 x 4.24mm
USD 26.47
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ID: 4204091 pcs
1.03ct Tanzanite
6.64 x 3.29mm
USD 123.60
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ID: 3806735 pcs
6.20ctw Zircon
6.26 x 3.58mm
USD 100.44
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ID: 4383152 pcs
3.43ctw Zircon
6.64 x 4.74mm
USD 68.60
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ID: 4320421 pcs
0.63ct Opal
6.30 x 3.63mm
USD 17.64
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ID: 4383102 pcs
3.04ctw Zircon
6.60 x 4.39mm
USD 60.80
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ID: 4409101 pcs
1.20ct Rhodolite Garnet
6.58 x 3.49mm
USD 24.00
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ID: 4344021 pcs
1.77ct Zircon
6.60 x 4.94mm
USD 35.40
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ID: 4321871 pcs
0.59ct Opal
6.35 x 3.51mm
USD 16.52
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ID: 3785981 pcs
1.75ct Zircon
6.47 x 4.18mm
USD 43.61
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ID: 2276182 pcs
3.25ctw Spessartite Garnet
6.37 x 3.28mm
USD 44.80
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ID: 4383581 pcs
1.45ct Zircon
6.46 x 4.15mm
USD 29.00
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ID: 3530621 pcs
1.41ct Sphene
6.70 x 4.44mm
USD 62.67
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ID: 4333422 pcs
2.94ctw Hessonite Garnet
6.57 x 4.41mm
USD 37.63
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ID: 4054612 pcs
3.40ctw Zircon
6.57 x 4.92mm
USD 84.08
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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