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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: 4331081 pcs
thumb image of 1.7ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433108)
1.71 ct Hessonite Garnet
6.7 mm
$ 21.89
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ID: 3685864 pcs
thumb image of 6.2ct Round Cabochon Green Prehnite (ID: 368586)
6.22 ct Prehnite
6.5 mm
$ 30.60
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ID: 4375412 pcs
thumb image of 3.3ct Diamond-Cut Orange Zircon (ID: 437541)
3.25 ct Zircon
6.6 mm
$ 65.00
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ID: 4386751 pcs
thumb image of 1.7ct Diamond-Cut Golden Orange Zircon (ID: 438675)
1.69 ct Zircon
6.6 mm
$ 33.80
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ID: 4373761 pcs
thumb image of 1.6ct Diamond-Cut Golden Zircon (ID: 437376)
1.56 ct Zircon
6.4 mm
$ 31.20
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ID: 3438181 pcs
thumb image of 1.2ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 343818)
1.22 ct Hessonite Garnet
6.6 mm
$ 51.24
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ID: 4383681 pcs
thumb image of 1.6ct Diamond-Cut Orange Zircon (ID: 438368)
1.61 ct Zircon
6.5 mm
$ 32.20
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ID: 4383631 pcs
thumb image of 1.7ct Diamond-Cut Orange Zircon (ID: 438363)
1.72 ct Zircon
6.6 mm
$ 34.40
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ID: 4388071 pcs
thumb image of 1.5ct Diamond-Cut Golden Zircon (ID: 438807)
1.48 ct Zircon
6.5 mm
$ 29.60
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ID: 4331181 pcs
thumb image of 1.7ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433118)
1.71 ct Hessonite Garnet
6.7 mm
$ 21.89
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ID: 3447821 pcs
thumb image of 1.1ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 344782)
1.13 ct Hessonite Garnet
6.7 mm
$ 50.85
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ID: 4319931 pcs
thumb image of 0.8ct Round Cabochon Multicolor Opal (ID: 431993)
0.79 ct Opal
6.3 mm
$ 22.12
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ID: 3767111 pcs
thumb image of 1.8ct Round Cabochon Green Prehnite (ID: 376711)
1.81 ct Prehnite
6.7 mm
$ 10.66
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ID: 3700301 pcs
thumb image of 1.5ct Diamond-Cut White Zircon (ID: 370030)
1.53 ct Zircon
6.7 mm
$ 33.12
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ID: 3806154 pcs
thumb image of 5.3ct Diamond-Cut White Zircon (ID: 380615)
5.31 ct Zircon
6.3 mm
$ 86.02
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ID: 4329561 pcs
thumb image of 1.5ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 432956)
1.52 ct Hessonite Garnet
6.5 mm
$ 19.46
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ID: 4195541 pcs
thumb image of 1.4ct Round Facet Rose Pink Tourmaline (ID: 419554)
1.42 ct Tourmaline
6.4 mm
$ 71.00
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ID: 4320471 pcs
thumb image of 0.6ct Round Cabochon Multicolor Opal (ID: 432047)
0.63 ct Opal
6.4 mm
$ 17.64
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ID: 4389052 pcs
thumb image of 3.1ct Diamond-Cut Orange Zircon (ID: 438905)
3.09 ct Zircon
6.4 mm
$ 61.80
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ID: 3447521 pcs
thumb image of 1.2ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 344752)
1.20 ct Hessonite Garnet
6.6 mm
$ 48.60
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ID: 4054702 pcs
thumb image of 3.3ct Diamond-Cut White Zircon (ID: 405470)
3.34 ct Zircon
6.6 mm
$ 82.60
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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