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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (288): Round Shape 10 mm Gems Clear All
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ID: 4265562 pcs
thumb image of 8.9ct Round Rose-Cut Black Spinel (ID: 426556)
8.93 ct Spinel
10.2 mm
$ 31.26
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ID: 4267982 pcs
thumb image of 9.5ct Round Rose-Cut Black Spinel (ID: 426798)
9.47 ct Spinel
10.1 mm
$ 33.15
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ID: 4594171 pcs
thumb image of 3.8ct Round Facet Brown Smoky Quartz (ID: 459417)
3.80 ct Smoky Quartz
10.1 mm
$ 5.70
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ID: 4231407 pcs
thumb image of 53ct Drilled Sphere Brown Smoky Quartz (ID: 423140)
52.98 ct Smoky Quartz
10.3 mm
$ 76.82
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ID: 4265152 pcs
thumb image of 8.3ct Round Rose-Cut Black Spinel (ID: 426515)
8.31 ct Spinel
10.2 mm
$ 29.08
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ID: 4267992 pcs
thumb image of 7.9ct Round Rose-Cut Black Spinel (ID: 426799)
7.87 ct Spinel
10.1 mm
$ 27.54
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ID: 4230945 pcs
thumb image of 34.9ct Drilled Sphere Multicolor Rutile Quartz (ID: 423094)
34.94 ct Rutile Quartz
10 mm
$ 34.94
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ID: 4230826 pcs
thumb image of 45.4ct Drilled Sphere Brown Smoky Quartz (ID: 423082)
45.37 ct Smoky Quartz
10.2 mm
$ 65.79
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ID: 3839294 pcs
thumb image of 19.1ct Round Rose-Cut Black Spinel (ID: 383929)
19.07 ct Spinel
10.2 mm
$ 57.21
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ID: 3283641 pcs
thumb image of 4.7ct Round Cabochon Multicolor Ruby-Zoisite (ID: 328364)
4.73 ct Ruby-Zoisite
9.7 mm
$ 10.84
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ID: 3217264 pcs
thumb image of 27.5ct Half-Drilled Sphere Smoky Brown Smoky Quartz (ID: 321726)
27.48 ct Smoky Quartz
10 mm
$ 24.53
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ID: 4230796 pcs
thumb image of 43.8ct Drilled Sphere Brown Smoky Quartz (ID: 423079)
43.78 ct Smoky Quartz
9.9 mm
$ 63.48
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ID: 4244601 pcs
thumb image of 6ct Round Cabochon Golden Green Cat's Eye Apatite (ID: 424460)
6.02 ct Cat's Eye Apatite
9.9 mm
$ 60.20
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ID: 3839224 pcs
thumb image of 17.9ct Round Rose-Cut Black Spinel (ID: 383922)
17.89 ct Spinel
10.1 mm
$ 53.67
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ID: 4431831 pcs
thumb image of 6.1ct Round Cabochon Golden Green Cat's Eye Apatite (ID: 443183)
6.08 ct Cat's Eye Apatite
9.8 mm
$ 91.14
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ID: 4351696 pcs
thumb image of 43.2ct Drilled Sphere Brownish Red Carnelian (ID: 435169)
43.21 ct Carnelian
10.1 mm
$ 43.21
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ID: 4244611 pcs
thumb image of 6ct Round Cabochon Golden Green Cat's Eye Apatite (ID: 424461)
6.04 ct Cat's Eye Apatite
9.8 mm
$ 89.99
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ID: 4463581 pcs
thumb image of 3.3ct Round Facet Brown Smoky Quartz (ID: 446358)
3.29 ct Smoky Quartz
10 mm
$ 6.58
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ID: 4173852 pcs
thumb image of 7.1ct Round Buff-Top Lemon Quartz (ID: 417385)
7.07 ct Quartz
10 mm
$ 14.14
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ID: 4230914 pcs
thumb image of 28.1ct Drilled Sphere Colorless Golden Rutile Quartz (ID: 423091)
28.08 ct Rutile Quartz
10 mm
$ 28.08
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ID: 4230435 pcs
thumb image of 36.6ct Drilled Sphere Multicolor Hawk's Eye (ID: 423043)
36.62 ct Hawk's Eye
10 mm
$ 53.10
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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