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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (605): Round Shape 4 mm Gems Clear All
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ID: 2948063 pcs
1.44ctw Chrysoberyl Cat's Eye
3.96mm x 3.12mm
USD 100.89
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ID: 3465234 pcs
1.34ctw Sphene
4.09mm x 2.73mm
USD 40.20
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ID: 3750654 pcs
1.25ctw Sapphire
4.10mm x 2.51mm
USD 46.44
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ID: 4152064 pcs
1.48ctw Rhodolite Garnet
4.12mm x 2.83mm
USD 29.60
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ID: 3684207 pcs
2.26ctw Spessartite Garnet
3.93mm x 2.74mm
USD 62.26
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ID: 2057389 pcs
2.24ctw Andalusite
4.08mm x 2.36mm
USD 100.80
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ID: 4152025 pcs
1.63ctw Rhodolite Garnet
4.01mm x 2.69mm
USD 32.60
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ID: 37984010 pcs
4.14ctw Spessartite Garnet
4.11mm x 2.74mm
USD 177.69
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ID: 3746884 pcs
1.11ctw Sapphire
3.92mm x 2.59mm
USD 40.97
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ID: 4244248 pcs
2.44ctw Sapphire
4.13mm x 2.50mm
USD 87.84
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ID: 3743794 pcs
1.21ctw Sapphire
4.09mm x 2.57mm
USD 44.66
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ID: 4150865 pcs
1.49ctw Rhodolite Garnet
4.02mm x 2.31mm
USD 29.80
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ID: 42359610 pcs
2.81ctw Sapphire
3.92mm x 2.60mm
USD 75.90
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ID: 3682795 pcs
1.82ctw Spessartite Garnet
4.11mm x 2.69mm
USD 50.14
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ID: 4288032 pcs
0.40ctw Emerald
3.85mm x 2.43mm
USD 156.00
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ID: 3750605 pcs
1.62ctw Sapphire
4.14mm x 2.90mm
USD 60.18
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ID: 3746844 pcs
1.02ctw Sapphire
3.84mm x 2.52mm
USD 37.65
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ID: 2214389 pcs
2.24ctw Andalusite
4.12mm x 2.69mm
USD 100.80
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ID: 3255645 pcs
1.44ctw Demantoid Garnet
3.84mm x 2.44mm
USD 166.32
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ID: 4103838 pcs
2.43ctw Moonstone
4.11mm x 2.53mm
USD 4.86
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ID: 3749624 pcs
1.21ctw Sapphire
3.98mm x 2.75mm
USD 44.95
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