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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (331): Round Shape 6.5 mm Gems Clear All
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ID: 4386821 pcs
thumb image of 1.6ct Diamond-Cut Golden Zircon (ID: 438682)
1.63ct Zircon
6.64 x 4.74mm
USD 32.60
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ID: 4323781 pcs
thumb image of 1.7ct Diamond-Cut Golden Zircon (ID: 432378)
1.66ct Zircon
6.71 x 4.44mm
USD 35.97
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ID: 4383571 pcs
thumb image of 1.5ct Diamond-Cut Orange Zircon (ID: 438357)
1.48ct Zircon
6.46 x 4.59mm
USD 29.60
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ID: 4373841 pcs
thumb image of 1.6ct Diamond-Cut Golden Zircon (ID: 437384)
1.57ct Zircon
6.72 x 4.40mm
USD 31.40
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ID: 3820711 pcs
thumb image of 1.5ct Round Facet Raspberry Red Rhodolite Garnet (ID: 382071)
1.46ct Rhodolite Garnet
6.43 x 4.29mm
USD 62.25
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ID: 4345412 pcs
thumb image of 3.2ct Diamond-Cut Golden Orange Zircon (ID: 434541)
3.22ct Zircon
6.45 x 4.70mm
USD 64.40
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ID: 3685924 pcs
thumb image of 5.4ct Round Cabochon Green Prehnite (ID: 368592)
5.38ct Prehnite
6.61 x 4.24mm
USD 26.47
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ID: 3558021 pcs
thumb image of 1.7ct Diamond-Cut White Zircon (ID: 355802)
1.68ct Zircon
6.75 x 4.47mm
USD 42.00
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ID: 3774301 pcs
thumb image of 1.5ct Round Facet Greenish Golden Mali Garnet (ID: 377430)
1.53ct Mali Garnet
6.32 x 5.11mm
USD 81.67
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ID: 4203162 pcs
thumb image of 2.2ct Round Facet Violet Blue Tanzanite (ID: 420316)
2.18ct Tanzanite
6.50 x 3.76mm
USD 261.60
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ID: 4153241 pcs
thumb image of 1.4ct Round Facet Green Tourmaline (ID: 415324)
1.40ct Tourmaline
6.43 x 4.79mm
USD 70.00
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ID: 4370621 pcs
thumb image of 1.4ct Diamond-Cut Orange Zircon (ID: 437062)
1.41ct Zircon
6.57 x 4.18mm
USD 28.20
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ID: 4331831 pcs
thumb image of 1.3ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433183)
1.30ct Hessonite Garnet
6.30 x 3.72mm
USD 16.64
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ID: 4383142 pcs
thumb image of 3.4ct Diamond-Cut Orange Zircon (ID: 438314)
3.36ct Zircon
6.58 x 4.92mm
USD 67.20
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ID: 4369511 pcs
thumb image of 1.5ct Diamond-Cut Orange Zircon (ID: 436951)
1.54ct Zircon
6.71 x 4.51mm
USD 30.80
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ID: 4343421 pcs
thumb image of 1.6ct Diamond-Cut Golden Orange Zircon (ID: 434342)
1.56ct Zircon
6.45 x 4.67mm
USD 31.20
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ID: 4427621 pcs
thumb image of 1.7ct Diamond-Cut Golden Zircon (ID: 442762)
1.66ct Zircon
6.41 x 5.06mm
USD 33.20
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ID: 3786001 pcs
thumb image of 1.9ct Round Facet White Zircon (ID: 378600)
1.86ct Zircon
6.28 x 4.78mm
USD 46.35
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ID: 4203202 pcs
thumb image of 2ct Round Facet Violet Blue Tanzanite (ID: 420320)
2.04ct Tanzanite
6.62 x 3.57mm
USD 244.80
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ID: 4383162 pcs
thumb image of 2.9ct Diamond-Cut Golden Orange Zircon (ID: 438316)
2.93ct Zircon
6.55 x 4.39mm
USD 58.60
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ID: 4383132 pcs
thumb image of 3.1ct Diamond-Cut Golden Orange Zircon (ID: 438313)
3.12ct Zircon
6.55 x 4.87mm
USD 62.40
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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