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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (621): Round Shape 4 mm Gems Clear All
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ID: 3690766 pcs
1.89ctw Sapphire
4.04 x 2.90mm
USD 77.92
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ID: 4072386 pcs
2.65ctw Spessartite Garnet
4.11 x 2.81mm
USD 79.50
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ID: 3255025 pcs
1.59ctw Demantoid Garnet
4.03 x 2.46mm
USD 183.65
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ID: 4151385 pcs
1.85ctw Rhodolite Garnet
4.14 x 2.83mm
USD 37.00
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ID: 4410166 pcs
1.92ctw Rhodolite Garnet
4.10 x 2.56mm
USD 38.40
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ID: 2243569 pcs
2.19ctw Andalusite
3.93 x 2.16mm
USD 98.55
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ID: 2060369 pcs
2.38ctw Andalusite
4.08 x 2.71mm
USD 107.10
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ID: 3797506 pcs
2.22ctw Spessartite Garnet
4.09 x 2.45mm
USD 95.28
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ID: 31082312 pcs
3.07ctw Andalusite
4.06 x 2.54mm
USD 136.80
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ID: 2795939 pcs
2.57ctw Andalusite
3.96 x 2.80mm
USD 115.65
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ID: 2947974 pcs
1.88ctw Chrysoberyl Cat's Eye
4.06 x 2.48mm
USD 131.60
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ID: 4152146 pcs
1.81ctw Rhodolite Garnet
4.05 x 3.12mm
USD 36.20
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ID: 4224252 pcs
0.56ctw Sapphire
3.85 x 2.74mm
USD 15.24
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ID: 3273755 pcs
1.77ctw Peridot
4.07 x 2.27mm
USD 14.16
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ID: 3013116 pcs
2.45ctw Chrysoberyl Cat's Eye
3.99 x 2.36mm
USD 159.25
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ID: 4290202 pcs
0.46ctw Emerald
4.08 x 2.41mm
USD 179.40
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ID: 4382736 pcs
1.74ctw Rhodolite Garnet
4.03 x 2.29mm
USD 13.78
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ID: 3273745 pcs
1.85ctw Peridot
4.04 x 2.38mm
USD 14.80
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ID: 3691036 pcs
1.78ctw Sapphire
3.91 x 2.96mm
USD 73.39
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ID: 3737725 pcs
1.86ctw Sapphire
4.06 x 2.91mm
USD 275.76
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ID: 43005410 pcs
2.88ctw Topaz
4.11 x 2.45mm
USD 14.40
Item in Stock
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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