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You Selected (397): Round Shape 10 mm Gems Clear All
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ID: 4209411 pcs
thumb image of 4ct Round Cabochon Cream Star Moonstone (ID: 420941)
4.01ct Star Moonstone
10.04 x 5.31mm
USD 12.03
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ID: 4225831 pcs
thumb image of 4.3ct Round Facet White Topaz (ID: 422583)
4.33ct Topaz
10.03 x 5.73mm
USD 21.65
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ID: 3849101 pcs
thumb image of 5.2ct Round Facet White Topaz (ID: 384910)
5.22ct Topaz
9.99 x 7.30mm
USD 36.54
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ID: 3903302 pcs
thumb image of 7.5ct Round Cabochon Gold Brown Tiger's Eye (ID: 390330)
7.52ct Tiger's Eye
10.07 x 5.07mm
USD 15.04
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ID: 4230705 pcs
thumb image of 34.9ct Drilled Sphere Violet Amethyst (ID: 423070)
34.90ct Amethyst
9.94mm
USD 50.60
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ID: 4433221 pcs
thumb image of 4.6ct Round Cabochon Colorless Golden Rutile Quartz (ID: 443322)
4.57ct Rutile Quartz
10.37 x 5.38mm
USD 11.38
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ID: 4351664 pcs
thumb image of 29.1ct Drilled Sphere Brownish Red Carnelian (ID: 435166)
29.08ct Carnelian
10.07mm
USD 29.08
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ID: 3087551 pcs
thumb image of 7ct Round Facet Yellow Golden Zircon (ID: 308755)
6.97ct Zircon
10.17 x 6.49mm
USD 383.35
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ID: 4109302 pcs
thumb image of 6.4ct Round Cabochon Violet Amethyst (ID: 410930)
6.37ct Amethyst
9.76 x 4.95mm
USD 31.85
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ID: 3843072 pcs
thumb image of 9.6ct Round Rose-Cut Black Spinel (ID: 384307)
9.62ct Spinel
10.16 x 4.61mm
USD 28.86
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ID: 3786352 pcs
thumb image of 8.1ct Round Rose-Cut Black Spinel (ID: 378635)
8.07ct Spinel
10.12 x 4.03mm
USD 24.21
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ID: 4225531 pcs
thumb image of 4.9ct Round Facet White Topaz (ID: 422553)
4.92ct Topaz
9.90 x 7.16mm
USD 24.60
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ID: 4226611 pcs
thumb image of 4.9ct Round Facet White Topaz (ID: 422661)
4.86ct Topaz
10.05 x 6.52mm
USD 24.30
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ID: 4228781 pcs
thumb image of 4.1ct Round Facet White Topaz (ID: 422878)
4.06ct Topaz
9.90 x 5.91mm
USD 20.30
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ID: 4228801 pcs
thumb image of 4.5ct Round Facet White Topaz (ID: 422880)
4.47ct Topaz
9.90 x 6.49mm
USD 22.35
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ID: 4225541 pcs
thumb image of 4.9ct Round Facet White Topaz (ID: 422554)
4.94ct Topaz
10.03 x 7.09mm
USD 24.70
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ID: 4230955 pcs
thumb image of 35.5ct Drilled Sphere Colorless Golden Rutile Quartz (ID: 423095)
35.51ct Rutile Quartz
10.09mm
USD 51.49
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ID: 3891011 pcs
thumb image of 4.7ct Round Facet White Topaz (ID: 389101)
4.69ct Topaz
10.06 x 6.11mm
USD 23.45
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ID: 4234234 pcs
thumb image of 25ct Drilled Sphere Colorless Golden Rutile Quartz (ID: 423423)
25.03ct Rutile Quartz
9.61mm
USD 20.02
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ID: 4244601 pcs
thumb image of 6ct Round Cabochon Golden Green Cat's Eye Apatite (ID: 424460)
6.02ct Cat's Eye Apatite
9.91 x 6.85mm
USD 60.20
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ID: 3887171 pcs
thumb image of 4.8ct Round Facet White Topaz (ID: 388717)
4.84ct Topaz
9.83 x 7.20mm
USD 24.20
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Round Shape 10 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 10 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