Jewelry New Arrivals Pairs Lots Contact
  : Round Shape 3 mm Gems
Shop By

Single

Pairs

Lots

Faceted

Cab

Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (121): Round Shape 3 mm Gems Clear All
Sort By:
Compare
ID: 40952310 pcs
thumb image of 1.2ct Diamond-Cut Light Pink Sapphire (ID: 409523)
1.21 ct Sapphire
3 mm
$ 42.35
Quantity
Item in Stock
Compare
ID: 42196020 pcs
thumb image of 2.2ct Diamond-Cut Multicolor Sapphire (ID: 421960)
2.16 ct Sapphire
2.9 mm
$ 64.80
Quantity
Item in Stock
Compare
ID: 38515120 pcs
thumb image of 2.4ct Diamond-Cut Golden Green Demantoid Garnet (ID: 385151)
2.42 ct Demantoid Garnet
3.1 mm
$ 168.60
Quantity
Item in Stock
Compare
ID: 34471720 pcs
thumb image of 3.3ct Round Cabochon Pink Sapphire (ID: 344717)
3.26 ct Sapphire
3.1 mm
$ 163.29
Quantity
Item in Stock
Compare
ID: 4295265 pcs
thumb image of 0.5ct Round Facet Green Emerald (ID: 429526)
0.52 ct Emerald
3 mm
$ 182.00
Quantity
Item in Stock
Compare
ID: 42116820 pcs
thumb image of 2.3ct Diamond-Cut Multicolor Sapphire (ID: 421168)
2.30 ct Sapphire
2.9 mm
$ 80.50
Quantity
Item in Stock
Compare
ID: 40217510 pcs
thumb image of 1.5ct Diamond-Cut Pink Red Ruby (ID: 402175)
1.45 ct Ruby
3.1 mm
$ 201.40
Quantity
Item in Stock
Compare
ID: 42195720 pcs
thumb image of 2.3ct Diamond-Cut Multicolor Sapphire (ID: 421957)
2.25 ct Sapphire
3 mm
$ 67.50
Quantity
Item in Stock
Compare
ID: 34486120 pcs
thumb image of 3.1ct Round Cabochon Pink Sapphire (ID: 344861)
3.14 ct Sapphire
2.9 mm
$ 157.75
Quantity
Item in Stock
Compare
ID: 42116720 pcs
thumb image of 2.3ct Diamond-Cut Multicolor Sapphire (ID: 421167)
2.30 ct Sapphire
2.9 mm
$ 80.50
Quantity
Item in Stock
Compare
ID: 40207015 pcs
thumb image of 1.9ct Diamond-Cut Pink Red Ruby (ID: 402070)
1.85 ct Ruby
3 mm
$ 256.97
Quantity
Item in Stock
Compare
ID: 34485420 pcs
thumb image of 3.5ct Round Cabochon Pink Sapphire (ID: 344854)
3.54 ct Sapphire
3.1 mm
$ 177.85
Quantity
Item in Stock
Compare
ID: 40211710 pcs
thumb image of 1.5ct Diamond-Cut Pink Red Ruby (ID: 402117)
1.52 ct Ruby
3.1 mm
$ 211.13
Quantity
Item in Stock
Compare
ID: 40210710 pcs
thumb image of 1.6ct Diamond-Cut Pink Red Ruby (ID: 402107)
1.64 ct Ruby
3.1 mm
$ 227.80
Quantity
Item in Stock
Compare
ID: 38639810 pcs
thumb image of 1.5ct Diamond-Cut Golden Green Demantoid Garnet (ID: 386398)
1.52 ct Demantoid Garnet
3 mm
$ 106.08
Quantity
Item in Stock
Compare
ID: 40947410 pcs
thumb image of 1.4ct Diamond-Cut Multicolor Sapphire (ID: 409474)
1.42 ct Sapphire
3.1 mm
$ 49.70
Quantity
Item in Stock
Compare
ID: 40207615 pcs
thumb image of 2ct Diamond-Cut Pink Red Ruby (ID: 402076)
2.04 ct Ruby
3 mm
$ 283.36
Quantity
Item in Stock
Compare
ID: 40207915 pcs
thumb image of 2.3ct Diamond-Cut Pink Red Ruby (ID: 402079)
2.26 ct Ruby
3 mm
$ 313.91
Quantity
Item in Stock
Compare
ID: 40215210 pcs
thumb image of 1.3ct Diamond-Cut Pink Red Ruby (ID: 402152)
1.31 ct Ruby
3 mm
$ 181.96
Quantity
Item in Stock
Compare
ID: 37494715 pcs
thumb image of 1.8ct Diamond-Cut Green Tsavorite Garnet (ID: 374947)
1.78 ct Tsavorite Garnet
3.1 mm
$ 132.24
Quantity
Item in Stock
Compare
ID: 34494320 pcs
thumb image of 2.8ct Round Cabochon Pink Sapphire (ID: 344943)
2.75 ct Sapphire
3 mm
$ 138.16
Quantity
Item in Stock
1
2
3
4
5
6
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.

English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Reorder Items

Save Money
No shipping Fees for Additional Items!
$6.99 Worldwide Shipping

GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
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