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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (116): Marquise Shape 6x3 mm Gems Clear All
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ID: 3595206 pcs
1.64ctw Sapphire
6.05mm x 3.07mm x 1.80mm
USD 73.80
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ID: 3590016 pcs
1.63ctw Sapphire
6.05mm x 3.08mm x 1.84mm
USD 75.93
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ID: 3590586 pcs
1.90ctw Sapphire
6.02mm x 3.09mm x 2.13mm
USD 88.50
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ID: 3589366 pcs
1.61ctw Sapphire
5.98mm x 2.99mm x 1.84mm
USD 74.99
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ID: 3595116 pcs
1.52ctw Sapphire
5.92mm x 3.08mm x 1.76mm
USD 68.40
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ID: 2730331 pcs
0.26ct Tsavorite Garnet
5.87mm x 2.96mm x 2.17mm
USD 32.76
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ID: 3589336 pcs
1.75ctw Sapphire
5.98mm x 3.07mm x 1.95mm
USD 81.52
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ID: 3592696 pcs
1.78ctw Sapphire
6.03mm x 3.07mm x 2.06mm
USD 80.10
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ID: 39912910 pcs
3.37ctw Topaz
6.12mm x 3.10mm x 2.70mm
USD 23.59
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ID: 3590106 pcs
1.60ctw Sapphire
5.99mm x 3.05mm x 1.88mm
USD 74.53
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ID: 26781815 pcs
4.08ctw Sapphire
6.00mm x 3.04mm x 1.60mm
USD 93.84
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ID: 3592896 pcs
1.39ctw Sapphire
5.84mm x 2.97mm x 1.66mm
USD 62.55
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ID: 3588666 pcs
1.56ctw Sapphire
5.91mm x 2.99mm x 1.79mm
USD 72.66
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ID: 3595186 pcs
1.43ctw Sapphire
5.79mm x 2.90mm x 1.78mm
USD 64.35
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ID: 3595176 pcs
1.76ctw Sapphire
6.00mm x 3.07mm x 1.95mm
USD 79.20
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ID: 3590576 pcs
1.96ctw Sapphire
6.05mm x 3.11mm x 2.08mm
USD 91.30
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ID: 3595246 pcs
1.40ctw Sapphire
5.82mm x 2.93mm x 1.69mm
USD 63.00
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ID: 3592756 pcs
1.68ctw Sapphire
6.02mm x 3.08mm x 1.80mm
USD 75.60
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ID: 2730021 pcs
0.29ct Tsavorite Garnet
6.13mm x 3.09mm x 2.31mm
USD 36.54
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ID: 3589276 pcs
1.59ctw Sapphire
5.98mm x 3.07mm x 1.75mm
USD 74.06
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ID: 3588676 pcs
1.55ctw Sapphire
5.90mm x 2.92mm x 1.90mm
USD 72.20
Item in Stock
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Marquise Shape 6x3 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 marquise shaped facet cut gems, gemstone carvings and cabochons available in 6 mm x 3 mm sizes. For the largest selection of colored gemstones, Shop GemSelect Online.

As a general guideline, when it comes to calibrated gems, they are not usually expected to be cut to exact measurements and specifications. But rather, they're cut with slight variance in size, though the close approximatation in size is not clearly defined, there are general guidelines for what is considered acceptable. Obviously larger and heavy carat weight stones allow more room in size for variance, while smaller stones may leave little to none. This means a large 30mm calibrated gemstone, could actually be closer to 31 millimeters. For this reason, we recommend to always view the exact size in addition to the calibrated size details. The exact size will inform you of the variance you can expect. Some setting styles are more flexible with variance, such as prong settings, while other styles of mountings may need almost an exact size to the fraction of millimeter.

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 round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most 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