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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (289): Round Shape 3.5 mm Gems Clear All
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ID: 4017306 pcs
thumb image of 1.4ct Round Facet Violet to Red Color-Change Sapphire (ID: 401730)
1.38 ct Color-Change Sapphire
3.5 mm
$ 103.50
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ID: 38219120 pcs
thumb image of 3.4ct Diamond-Cut Multicolor Andalusite (ID: 382191)
3.37 ct Andalusite
3.5 mm
$ 135.24
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ID: 3881529 pcs
thumb image of 2.4ct Round Facet Blue Sapphire (ID: 388152)
2.38 ct Sapphire
3.6 mm
$ 259.97
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ID: 3684236 pcs
thumb image of 1.4ct Diamond-Cut Orange Spessartite Garnet (ID: 368423)
1.40 ct Spessartite Garnet
3.5 mm
$ 38.57
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ID: 43240810 pcs
thumb image of 2.2ct Diamond-Cut Blue Sapphire (ID: 432408)
2.23 ct Sapphire
3.5 mm
$ 142.74
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ID: 39935110 pcs
thumb image of 2.6ct Round Facet Pink Red Ruby (ID: 399351)
2.58 ct Ruby
3.4 mm
$ 438.52
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ID: 40155810 pcs
thumb image of 2.2ct Round Facet Multicolor Color-Change Sapphire (ID: 401558)
2.17 ct Color-Change Sapphire
3.4 mm
$ 162.75
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ID: 39935310 pcs
thumb image of 2.1ct Round Facet Pink Red Ruby (ID: 399353)
2.10 ct Ruby
3.4 mm
$ 356.94
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ID: 42345810 pcs
thumb image of 2.3ct Diamond-Cut Orange Sapphire (ID: 423458)
2.34 ct Sapphire
3.6 mm
$ 63.20
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ID: 38522810 pcs
thumb image of 2.2ct Diamond-Cut Golden Green Demantoid Garnet (ID: 385228)
2.20 ct Demantoid Garnet
3.5 mm
$ 153.27
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ID: 42360010 pcs
thumb image of 1.9ct Diamond-Cut Yellow Golden Sapphire (ID: 423600)
1.85 ct Sapphire
3.5 mm
$ 49.97
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ID: 38543410 pcs
thumb image of 2ct Diamond-Cut Golden Green Demantoid Garnet (ID: 385434)
2.04 ct Demantoid Garnet
3.5 mm
$ 142.19
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ID: 4246776 pcs
thumb image of 1.1ct Diamond-Cut Multicolor Sapphire (ID: 424677)
1.08 ct Sapphire
3.4 mm
$ 43.20
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ID: 4037646 pcs
thumb image of 1.5ct Round Facet Multicolor Color-Change Sapphire (ID: 403764)
1.45 ct Color-Change Sapphire
3.5 mm
$ 108.75
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ID: 38223430 pcs
thumb image of 4.4ct Diamond-Cut Multicolor Andalusite (ID: 382234)
4.44 ct Andalusite
3.5 mm
$ 178.18
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ID: 4246756 pcs
thumb image of 1.4ct Diamond-Cut Multicolor Sapphire (ID: 424675)
1.38 ct Sapphire
3.6 mm
$ 55.20
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ID: 42387210 pcs
thumb image of 2.3ct Diamond-Cut Yellow Golden Sapphire (ID: 423872)
2.26 ct Sapphire
3.6 mm
$ 60.88
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ID: 42322510 pcs
thumb image of 1.8ct Diamond-Cut Yellow Orange Sapphire (ID: 423225)
1.84 ct Sapphire
3.5 mm
$ 55.20
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ID: 38195420 pcs
thumb image of 3.1ct Diamond-Cut Multicolor Andalusite (ID: 381954)
3.13 ct Andalusite
3.5 mm
$ 125.48
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ID: 42460510 pcs
thumb image of 1.9ct Diamond-Cut Yellow Golden Sapphire (ID: 424605)
1.89 ct Sapphire
3.5 mm
$ 75.60
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ID: 42322410 pcs
thumb image of 1.9ct Diamond-Cut Yellow Orange Sapphire (ID: 423224)
1.94 ct Sapphire
3.5 mm
$ 58.20
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Round Shape 3.5 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 3.5 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