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You Selected (220): Square Shape 4x4 mm Gems Clear All
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ID: 3669662 pcs
thumb image of 0.8ct Princess-Cut Light Yellow Sapphire (ID: 366966)
0.84 ct Sapphire
4 x 4 mm
$ 63.95
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ID: 35183310 pcs
thumb image of 3.7ct Square Facet Bluish White Rainbow Moonstone (ID: 351833)
3.69 ct Rainbow Moonstone
4.1 x 4.1 mm
$ 73.80
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ID: 34189710 pcs
thumb image of 4.7ct Square Facet White Topaz (ID: 341897)
4.68 ct Topaz
4 x 4 mm
$ 34.40
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ID: 46443010 pcs
thumb image of 4.3ct Square Step-Cut Red Pyrope Garnet (ID: 464430)
4.31 ct Pyrope Garnet
4 x 4 mm
$ 30.17
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ID: 46425810 pcs
thumb image of 3.7ct Square Step-Cut Red Pyrope Garnet (ID: 464258)
3.70 ct Pyrope Garnet
4 x 4 mm
$ 25.90
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ID: 35183810 pcs
thumb image of 3.2ct Square Facet Bluish White Rainbow Moonstone (ID: 351838)
3.19 ct Rainbow Moonstone
4 x 3.9 mm
$ 63.80
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ID: 46431210 pcs
thumb image of 4.2ct Square Step-Cut Red Pyrope Garnet (ID: 464312)
4.17 ct Pyrope Garnet
4.1 x 4 mm
$ 29.19
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ID: 46430610 pcs
thumb image of 4ct Square Step-Cut Red Pyrope Garnet (ID: 464306)
3.98 ct Pyrope Garnet
4 x 4 mm
$ 27.86
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ID: 46306610 pcs
thumb image of 4.1ct Square Step-Cut Red Almandine Garnet (ID: 463066)
4.14 ct Almandine Garnet
4 x 4 mm
$ 28.98
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ID: 46306710 pcs
thumb image of 4.1ct Square Step-Cut Red Almandine Garnet (ID: 463067)
4.08 ct Almandine Garnet
3.9 x 4 mm
$ 28.56
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ID: 4643736 pcs
thumb image of 2.6ct Square Step-Cut Red Pyrope Garnet (ID: 464373)
2.57 ct Pyrope Garnet
4 x 4 mm
$ 17.99
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ID: 4642026 pcs
thumb image of 2.7ct Square Step-Cut Red Pyrope Garnet (ID: 464202)
2.74 ct Pyrope Garnet
4.1 x 4 mm
$ 19.18
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ID: 4641996 pcs
thumb image of 2.6ct Square Step-Cut Red Pyrope Garnet (ID: 464199)
2.64 ct Pyrope Garnet
4 x 4 mm
$ 18.48
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ID: 46441310 pcs
thumb image of 4.3ct Square Step-Cut Red Pyrope Garnet (ID: 464413)
4.26 ct Pyrope Garnet
4 x 4 mm
$ 29.82
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ID: 4643436 pcs
thumb image of 2.4ct Square Step-Cut Red Pyrope Garnet (ID: 464343)
2.43 ct Pyrope Garnet
3.9 x 3.9 mm
$ 17.01
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ID: 46445710 pcs
thumb image of 4.1ct Square Step-Cut Red Pyrope Garnet (ID: 464457)
4.11 ct Pyrope Garnet
4 x 4 mm
$ 28.77
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ID: 4644866 pcs
thumb image of 2.9ct Square Step-Cut Red Pyrope Garnet (ID: 464486)
2.93 ct Pyrope Garnet
4.1 x 4 mm
$ 20.51
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ID: 46438610 pcs
thumb image of 3.5ct Square Step-Cut Red Pyrope Garnet (ID: 464386)
3.54 ct Pyrope Garnet
4 x 3.9 mm
$ 24.78
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ID: 46439910 pcs
thumb image of 4.3ct Square Step-Cut Red Pyrope Garnet (ID: 464399)
4.34 ct Pyrope Garnet
4.1 x 4.1 mm
$ 30.38
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ID: 46428010 pcs
thumb image of 3.8ct Square Step-Cut Red Pyrope Garnet (ID: 464280)
3.83 ct Pyrope Garnet
4 x 3.9 mm
$ 26.81
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ID: 46430110 pcs
thumb image of 3.8ct Square Step-Cut Red Pyrope Garnet (ID: 464301)
3.79 ct Pyrope Garnet
4.1 x 4 mm
$ 26.53
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Square Shape 4x4 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 Square shapes, facet cut and cabochon gems available now in 4 mm x 4 mm 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 meant nor 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