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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (199): Round Shape 3 mm Gems Clear All
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ID: 38029120 pcs
2.11ctw Tsavorite Garnet
2.93 x 1.96mm
USD 193.76
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ID: 38190130 pcs
3.35ctw Andalusite
3.06 x 2.24mm
USD 134.30
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ID: 34472520 pcs
3.19ctw Sapphire
3.11 x 1.64mm
USD 159.79
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ID: 42196320 pcs
2.08ctw Sapphire
2.88 x 1.89mm
USD 62.40
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ID: 34486120 pcs
3.14ctw Sapphire
2.90 x 1.82mm
USD 157.75
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ID: 38609110 pcs
1.51ctw Demantoid Garnet
3.12 x 2.21mm
USD 105.14
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ID: 42196520 pcs
2.24ctw Sapphire
2.88 x 2.12mm
USD 67.20
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ID: 38623810 pcs
1.45ctw Demantoid Garnet
3.09 x 2.08mm
USD 100.96
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ID: 40966410 pcs
1.42ctw Sapphire
3.00 x 2.18mm
USD 49.70
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ID: 40211610 pcs
1.30ctw Ruby
3.08 x 1.76mm
USD 180.57
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ID: 40965910 pcs
1.36ctw Sapphire
3.00 x 2.13mm
USD 47.60
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ID: 40217510 pcs
1.45ctw Ruby
3.07 x 1.97mm
USD 201.40
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ID: 42116820 pcs
2.30ctw Sapphire
2.94 x 2.01mm
USD 80.50
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ID: 40207215 pcs
1.74ctw Ruby
2.93 x 1.60mm
USD 241.69
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ID: 38664010 pcs
1.18ctw Demantoid Garnet
2.98 x 1.93mm
USD 82.35
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ID: 40928710 pcs
1.28ctw Sapphire
3.02 x 2.03mm
USD 44.80
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ID: 4295265 pcs
0.52ctw Emerald
3.00 x 1.97mm
USD 182.00
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ID: 38639510 pcs
1.52ctw Demantoid Garnet
3.06 x 2.36mm
USD 106.08
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ID: 38623510 pcs
1.24ctw Demantoid Garnet
3.00 x 2.06mm
USD 86.34
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ID: 4296027 pcs
0.86ctw Emerald
3.08 x 2.22mm
USD 301.00
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ID: 40936510 pcs
1.29ctw Sapphire
2.96 x 1.95mm
USD 45.15
Item in Stock
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Round Shape 3 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 3 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