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ID: 3013006 pcs
thumb image of 2.3ct Round Cabochon Yellowish Green Chrysoberyl Cat's Eye (ID: 301300)
2.33ct Chrysoberyl Cat's Eye
4.11 x 2.38mm
USD 151.45
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ID: 4287703 pcs
thumb image of 0.8ct Round Facet Green Emerald (ID: 428770)
0.81ct Emerald
4.03 x 2.90mm
USD 315.90
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ID: 4100168 pcs
thumb image of 2.4ct Round Cabochon Peach Orange Moonstone (ID: 410016)
2.41ct Moonstone
4.05 x 2.40mm
USD 4.82
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ID: 41030710 pcs
thumb image of 2.7ct Round Cabochon Peach Orange Moonstone (ID: 410307)
2.67ct Moonstone
4.06 x 2.28mm
USD 5.34
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ID: 4224252 pcs
thumb image of 0.6ct Diamond-Cut Yellow Orange Sapphire (ID: 422425)
0.56ct Sapphire
3.85 x 2.74mm
USD 15.24
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ID: 37982010 pcs
thumb image of 3.7ct Round Facet Red Orange Spessartite Garnet (ID: 379820)
3.72ct Spessartite Garnet
3.93 x 2.60mm
USD 159.66
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ID: 4294481 pcs
thumb image of 0.2ct Round Facet Green Emerald (ID: 429448)
0.20ct Emerald
3.90 x 2.26mm
USD 78.00
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ID: 2058789 pcs
thumb image of 2.3ct Round Facet Multicolor Andalusite (ID: 205878)
2.28ct Andalusite
4.09 x 2.50mm
USD 102.60
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ID: 2977224 pcs
thumb image of 1.5ct Round Facet Multicolor Sapphire (ID: 297722)
1.48ct Sapphire
4.03 x 2.71mm
USD 132.09
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ID: 2948324 pcs
thumb image of 1.5ct Round Cabochon Golden Green Chrysoberyl Cat's Eye (ID: 294832)
1.48ct Chrysoberyl Cat's Eye
3.93 x 2.37mm
USD 103.60
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ID: 4250136 pcs
thumb image of 1.9ct Diamond-Cut Multicolor Sapphire (ID: 425013)
1.88ct Sapphire
3.98 x 2.75mm
USD 75.20
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ID: 4244843 pcs
thumb image of 0.9ct Round Facet Blue Sapphire (ID: 424484)
0.87ct Sapphire
4.06 x 2.21mm
USD 156.60
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ID: 2068799 pcs
thumb image of 2.4ct Round Facet Multicolor Andalusite (ID: 206879)
2.37ct Andalusite
4.06 x 2.64mm
USD 106.65
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ID: 4101478 pcs
thumb image of 2.6ct Round Cabochon Peach Orange Moonstone (ID: 410147)
2.64ct Moonstone
4.12 x 2.46mm
USD 5.28
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ID: 40992210 pcs
thumb image of 3ct Round Cabochon Peach Orange Moonstone (ID: 409922)
2.97ct Moonstone
4.12 x 2.41mm
USD 5.94
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ID: 3909094 pcs
thumb image of 1.2ct Round Facet Multicolor Andalusite (ID: 390909)
1.16ct Andalusite
4.11 x 2.74mm
USD 56.77
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ID: 42399210 pcs
thumb image of 2.8ct Diamond-Cut Yellow Golden Sapphire (ID: 423992)
2.81ct Sapphire
3.87 x 2.62mm
USD 101.16
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ID: 4244775 pcs
thumb image of 1.6ct Diamond-Cut Multicolor Sapphire (ID: 424477)
1.57ct Sapphire
3.92 x 2.78mm
USD 62.80
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ID: 3735744 pcs
thumb image of 1.5ct Round Facet Multicolor Sapphire (ID: 373574)
1.50ct Sapphire
4.09 x 3.00mm
USD 63.60
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ID: 3254685 pcs
thumb image of 1.6ct Round Facet Green Demantoid Garnet (ID: 325468)
1.59ct Demantoid Garnet
4.14 x 2.33mm
USD 183.65
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ID: 4152025 pcs
thumb image of 1.6ct Round Facet Raspberry Red Rhodolite Garnet (ID: 415202)
1.63ct Rhodolite Garnet
4.01 x 2.69mm
USD 32.60
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Round Shape 4 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 4 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