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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (259): Round Shape 6.5 mm Gems Clear All
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ID: 4333351 pcs
thumb image of 1.4ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433335)
1.42 ct Hessonite Garnet
6.4 mm
$ 18.18
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ID: 4376461 pcs
thumb image of 1.6ct Diamond-Cut Orange Zircon (ID: 437646)
1.60 ct Zircon
6.4 mm
$ 32.00
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ID: 4054682 pcs
thumb image of 3.5ct Diamond-Cut White Zircon (ID: 405468)
3.50 ct Zircon
6.5 mm
$ 86.56
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ID: 4369451 pcs
thumb image of 1.5ct Diamond-Cut Golden Orange Zircon (ID: 436945)
1.48 ct Zircon
6.6 mm
$ 29.60
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ID: 3785951 pcs
thumb image of 1.8ct Round Facet White Zircon (ID: 378595)
1.82 ct Zircon
6.7 mm
$ 45.35
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ID: 4343401 pcs
thumb image of 1.6ct Diamond-Cut Golden Orange Zircon (ID: 434340)
1.60 ct Zircon
6.6 mm
$ 32.00
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ID: 4344011 pcs
thumb image of 1.7ct Diamond-Cut Golden Zircon (ID: 434401)
1.71 ct Zircon
6.6 mm
$ 34.20
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ID: 3438151 pcs
thumb image of 1.3ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 343815)
1.26 ct Hessonite Garnet
6.6 mm
$ 52.92
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ID: 4331161 pcs
thumb image of 1.6ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433116)
1.62 ct Hessonite Garnet
6.7 mm
$ 20.74
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ID: 4383112 pcs
thumb image of 2.9ct Diamond-Cut Golden Orange Zircon (ID: 438311)
2.94 ct Zircon
6.4 mm
$ 58.80
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ID: 3778922 pcs
thumb image of 4.3ct Round Facet White Zircon (ID: 377892)
4.31 ct Zircon
6.6 mm
$ 115.77
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ID: 4333422 pcs
thumb image of 2.9ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433342)
2.94 ct Hessonite Garnet
6.6 mm
$ 37.63
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ID: 4010561 pcs
thumb image of 1.3ct Round Facet Greenish Golden Tourmaline (ID: 401056)
1.30 ct Tourmaline
6.4 mm
$ 62.50
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ID: 4203492 pcs
thumb image of 2.1ct Round Facet Violet Blue Tanzanite (ID: 420349)
2.08 ct Tanzanite
6.5 mm
$ 249.60
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ID: 3821101 pcs
thumb image of 1.3ct Round Facet Raspberry Red Rhodolite Garnet (ID: 382110)
1.34 ct Rhodolite Garnet
6.3 mm
$ 57.14
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ID: 4499401 pcs
thumb image of 1.8ct Round Facet Blue Zircon (ID: 449940)
1.84 ct Zircon
6.5 mm
$ 69.07
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ID: 3778932 pcs
thumb image of 3.8ct Round Facet White Zircon (ID: 377893)
3.77 ct Zircon
6.5 mm
$ 101.26
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ID: 3891121 pcs
thumb image of 1.3ct Round Facet Green/Pink Color-Change Diaspore (ID: 389112)
1.30 ct Color-Change Diaspore
6.4 mm
$ 63.23
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ID: 4333331 pcs
thumb image of 1.3ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433333)
1.30 ct Hessonite Garnet
6.6 mm
$ 16.64
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ID: 4479741 pcs
thumb image of 2.3ct Round Facet Blue Zircon (ID: 447974)
2.26 ct Zircon
6.5 mm
$ 101.70
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ID: 3859712 pcs
thumb image of 3.5ct Diamond-Cut White Zircon (ID: 385971)
3.54 ct Zircon
6.7 mm
$ 87.23
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Round Shape 6.5 mm Gems
Some people buy 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 even slightly higher. 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