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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (577): Round Shape 6 mm Gems Clear All
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ID: 4649412 pcs
thumb image of 1.4ct Round Facet Light Blue Aquamarine (ID: 464941)
1.44 ct Aquamarine
6.1 mm
$ 43.20
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ID: 3593684 pcs
thumb image of 4.7ct Diamond-Cut White Zircon (ID: 359368)
4.65 ct Zircon
6 mm
$ 69.75
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ID: 4002735 pcs
thumb image of 5.2ct Round Cabochon Cream Moonstone (ID: 400273)
5.19 ct Moonstone
6.1 mm
$ 51.90
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ID: 4331841 pcs
thumb image of 1.4ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 433184)
1.36 ct Hessonite Garnet
6.1 mm
$ 17.41
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ID: 3593754 pcs
thumb image of 4.4ct Diamond-Cut White Zircon (ID: 359375)
4.44 ct Zircon
6 mm
$ 66.60
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ID: 4660534 pcs
thumb image of 3.1ct Round Facet Light Blue Aquamarine (ID: 466053)
3.12 ct Aquamarine
6.2 mm
$ 93.60
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ID: 4329601 pcs
thumb image of 1.4ct Round Facet Cinnamon Orange Hessonite Garnet (ID: 432960)
1.37 ct Hessonite Garnet
5.8 mm
$ 17.54
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ID: 4573952 pcs
thumb image of 1.9ct Round Facet Red Pyrope Garnet (ID: 457395)
1.93 ct Pyrope Garnet
6.1 mm
$ 13.30
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ID: 4638884 pcs
thumb image of 3.6ct Round Facet Red Pyrope Garnet (ID: 463888)
3.64 ct Pyrope Garnet
6.1 mm
$ 36.40
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ID: 4684761 pcs
thumb image of 0.9ct Round Cabochon Blue White Rainbow Moonstone (ID: 468476)
0.88 ct Rainbow Moonstone
5.9 mm
$ 7.04
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ID: 3867274 pcs
thumb image of 6.8ct Round Cabochon Blue Sapphire (ID: 386727)
6.77 ct Sapphire
6.2 mm
$ 67.70
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ID: 3589042 pcs
thumb image of 2.1ct Diamond-Cut White Zircon (ID: 358904)
2.13 ct Zircon
5.9 mm
$ 30.71
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ID: 4434381 pcs
thumb image of 1.5ct Round Facet Yellow Golden Sapphire (ID: 443438)
1.45 ct Sapphire
6.2 mm
$ 216.76
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ID: 4576002 pcs
thumb image of 2.2ct Round Facet Deep Red Pyrope Garnet (ID: 457600)
2.23 ct Pyrope Garnet
6.1 mm
$ 15.36
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ID: 4203172 pcs
thumb image of 1.8ct Round Facet Violet Blue Tanzanite (ID: 420317)
1.81 ct Tanzanite
6.1 mm
$ 217.20
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ID: 3304664 pcs
thumb image of 4.5ct Round Cabochon Yellow Orange Citrine (ID: 330466)
4.49 ct Citrine
6.1 mm
$ 26.94
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ID: 4639422 pcs
thumb image of 2ct Round Facet Red Pyrope Garnet (ID: 463942)
1.96 ct Pyrope Garnet
6 mm
$ 19.60
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ID: 4002715 pcs
thumb image of 5.5ct Round Cabochon Cream Moonstone (ID: 400271)
5.46 ct Moonstone
6.1 mm
$ 54.60
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ID: 4116861 pcs
thumb image of 1.1ct Diamond-Cut Green Yellow Sillimanite (ID: 411686)
1.10 ct Sillimanite
6.2 mm
$ 38.50
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ID: 3857021 pcs
thumb image of 1.4ct Diamond-Cut White Zircon (ID: 385702)
1.39 ct Zircon
6 mm
$ 34.25
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ID: 4003826 pcs
thumb image of 7.3ct Round Cabochon Cream Moonstone (ID: 400382)
7.26 ct Moonstone
6.2 mm
$ 72.60
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Round Shape 6 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 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