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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (256): Round Shape 6.5 mm Gems Clear All
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ID: 4376451 pcs
thumb image of 1.8ct Diamond-Cut Orange Zircon (ID: 437645)
1.81 ct Zircon
6.7 mm
$ 36.20
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ID: 4203202 pcs
thumb image of 2ct Round Facet Violet Blue Tanzanite (ID: 420320)
2.04 ct Tanzanite
6.6 mm
$ 244.80
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ID: 4329511 pcs
thumb image of 1.2ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 432951)
1.17 ct Hessonite Garnet
6.4 mm
$ 14.98
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ID: 4330291 pcs
thumb image of 1.2ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433029)
1.24 ct Hessonite Garnet
6.5 mm
$ 15.87
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ID: 3698661 pcs
thumb image of 1.5ct Diamond-Cut White Zircon (ID: 369866)
1.49 ct Zircon
6.6 mm
$ 32.26
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ID: 3861211 pcs
thumb image of 1.6ct Diamond-Cut White Zircon (ID: 386121)
1.64 ct Zircon
6.5 mm
$ 40.41
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ID: 3259304 pcs
thumb image of 4.9ct Round Facet Multicolor Malaya Garnet (ID: 325930)
4.90 ct Malaya Garnet
6.5 mm
$ 370.44
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ID: 4329621 pcs
thumb image of 1.3ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 432962)
1.28 ct Hessonite Garnet
6.4 mm
$ 16.38
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ID: 4203572 pcs
thumb image of 2.1ct Round Facet Violet Blue Tanzanite (ID: 420357)
2.11 ct Tanzanite
6.5 mm
$ 253.20
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ID: 3806691 pcs
thumb image of 1.7ct Diamond-Cut White Zircon (ID: 380669)
1.67 ct Zircon
6.7 mm
$ 27.05
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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: 4329611 pcs
thumb image of 1.3ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 432961)
1.30 ct Hessonite Garnet
6.5 mm
$ 16.64
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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: 4427621 pcs
thumb image of 1.7ct Diamond-Cut Golden Zircon (ID: 442762)
1.66 ct Zircon
6.4 mm
$ 33.20
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ID: 4331831 pcs
thumb image of 1.3ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433183)
1.30 ct Hessonite Garnet
6.3 mm
$ 16.64
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ID: 4203212 pcs
thumb image of 1.9ct Round Facet Violet Blue Tanzanite (ID: 420321)
1.93 ct Tanzanite
6.5 mm
$ 231.60
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ID: 4331811 pcs
thumb image of 1.3ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433181)
1.32 ct Hessonite Garnet
6.4 mm
$ 16.90
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ID: 4327262 pcs
thumb image of 2.8ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 432726)
2.80 ct Hessonite Garnet
6.6 mm
$ 35.84
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ID: 4203152 pcs
thumb image of 2.1ct Round Facet Violet Blue Tanzanite (ID: 420315)
2.10 ct Tanzanite
6.5 mm
$ 252.00
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ID: 4475451 pcs
thumb image of 2ct Round Facet Blue Zircon (ID: 447545)
1.96 ct Zircon
6.4 mm
$ 88.20
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ID: 4203652 pcs
thumb image of 2.2ct Round Facet Violet Blue Tanzanite (ID: 420365)
2.19 ct Tanzanite
6.6 mm
$ 262.80
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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