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You Selected (101): Marquise Shape 6x3 mm Gems Clear All
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ID: 2730061 pcs
thumb image of 0.3ct Marquise Facet Chrome Green Tsavorite Garnet (ID: 273006)
0.29ct Tsavorite Garnet
6.02 x 3.07 x 2.36mm
USD 36.54
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ID: 3589366 pcs
thumb image of 1.6ct Marquise Facet Violet Pink Sapphire (ID: 358936)
1.61ct Sapphire
5.98 x 2.99 x 1.84mm
USD 74.99
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ID: 3589206 pcs
thumb image of 1.5ct Marquise Facet Pink Sapphire (ID: 358920)
1.52ct Sapphire
6.07 x 3.03 x 1.67mm
USD 70.80
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ID: 2729921 pcs
thumb image of 0.3ct Marquise Facet Chrome Green Tsavorite Garnet (ID: 272992)
0.31ct Tsavorite Garnet
6.11 x 3.10 x 2.23mm
USD 39.06
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ID: 3595146 pcs
thumb image of 1.5ct Marquise Facet Violet Pink Sapphire (ID: 359514)
1.51ct Sapphire
6.02 x 3.06 x 1.70mm
USD 67.95
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ID: 3588616 pcs
thumb image of 1.7ct Marquise Facet Pink Sapphire (ID: 358861)
1.72ct Sapphire
5.98 x 3.08 x 1.96mm
USD 80.12
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ID: 3592736 pcs
thumb image of 1.5ct Marquise Facet Violet Pink Sapphire (ID: 359273)
1.47ct Sapphire
5.99 x 3.00 x 1.72mm
USD 66.15
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ID: 3598316 pcs
thumb image of 1.7ct Marquise Facet Multicolor Sapphire (ID: 359831)
1.69ct Sapphire
5.89 x 2.89 x 2.09mm
USD 75.27
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ID: 3590086 pcs
thumb image of 1.9ct Marquise Facet Yellow Golden Sapphire (ID: 359008)
1.92ct Sapphire
5.98 x 3.09 x 2.13mm
USD 89.43
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ID: 3596606 pcs
thumb image of 1.6ct Marquise Facet Multicolor Sapphire (ID: 359660)
1.56ct Sapphire
6.02 x 3.06 x 1.80mm
USD 69.48
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ID: 3595286 pcs
thumb image of 1.5ct Marquise Facet Purple Pink Sapphire (ID: 359528)
1.51ct Sapphire
5.94 x 2.99 x 1.81mm
USD 67.95
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ID: 3589266 pcs
thumb image of 1.6ct Marquise Facet Violet Pink Sapphire (ID: 358926)
1.62ct Sapphire
5.93 x 2.99 x 1.94mm
USD 75.46
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ID: 3589336 pcs
thumb image of 1.8ct Marquise Facet Violet Pink Sapphire (ID: 358933)
1.75ct Sapphire
5.98 x 3.07 x 1.95mm
USD 81.52
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ID: 3592696 pcs
thumb image of 1.8ct Marquise Facet Yellowish Green Sapphire (ID: 359269)
1.78ct Sapphire
6.03 x 3.07 x 2.06mm
USD 80.10
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ID: 3592896 pcs
thumb image of 1.4ct Marquise Facet Pink Sapphire (ID: 359289)
1.39ct Sapphire
5.84 x 2.97 x 1.66mm
USD 62.55
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ID: 39912610 pcs
thumb image of 3ct Marquise Facet Swiss Blue Topaz (ID: 399126)
2.95ct Topaz
6.08 x 3.09 x 2.43mm
USD 20.65
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ID: 3592876 pcs
thumb image of 1.4ct Marquise Facet Violet Pink Sapphire (ID: 359287)
1.41ct Sapphire
6.04 x 2.96 x 1.63mm
USD 63.45
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ID: 39912210 pcs
thumb image of 3.1ct Marquise Facet Swiss Blue Topaz (ID: 399122)
3.13ct Topaz
6.08 x 3.09 x 2.46mm
USD 21.91
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ID: 3592726 pcs
thumb image of 1.6ct Marquise Facet Pink Sapphire (ID: 359272)
1.60ct Sapphire
5.94 x 3.00 x 1.84mm
USD 72.00
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ID: 3595246 pcs
thumb image of 1.4ct Marquise Facet Purple Pink Sapphire (ID: 359524)
1.40ct Sapphire
5.82 x 2.93 x 1.69mm
USD 63.00
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ID: 2729951 pcs
thumb image of 0.3ct Marquise Facet Chrome Green Tsavorite Garnet (ID: 272995)
0.31ct Tsavorite Garnet
6.14 x 3.05 x 2.32mm
USD 39.06
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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