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Buy Marquise Shape 6x3 mm Gems

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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (137): Marquise Shape 6x3 mm Gems Clear All
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Multicolor Sapphire Gem - 0.3ct Marquise Facet (ID: 359829)

Marquise Multicolor Sapphire

0.28 ct (total 1.66ctw)
5.9 x 3 mm
$ 73.94
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4 pcs
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Yellow Golden Citrine Gem - 0.3ct Marquise Facet (ID: 501289)

Marquise Yellow Citrine

0.29 ct (total 1.16ctw)
6 x 3.1 mm
$ 11.52
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1 pc
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Chrome Green Tsavorite Garnet Gem - 0.3ct Marquise Facet (ID: 273065)

Marquise Green Tsavorite Garnet

0.3ct
5.8 x 2.9 mm
$ 34.02
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493200)

Marquise Yellow Citrine

0.20 ct (total 1.21ctw)
5.9 x 2.9 mm
$ 6.05
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1 pc
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Pink Sapphire Gem - 0.2ct Marquise Facet (ID: 505098)

Marquise Pink Sapphire

0.2ct
5.8 x 2.9 mm
$ 11.29
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10 pcs
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Violet Amethyst Gem - 0.2ct Marquise Facet (ID: 493545)

Marquise Violet Amethyst

0.24 ct (total 2.39ctw)
5.9 x 3.1 mm
$ 11.95
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10 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493403)

Marquise Yellow Citrine

0.23 ct (total 2.33ctw)
6 x 3 mm
$ 11.65
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10 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493383)

Marquise Yellow Citrine

0.22 ct (total 2.17ctw)
6.1 x 3 mm
$ 10.85
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493183)

Marquise Yellow Citrine

0.22 ct (total 1.32ctw)
6.1 x 3.1 mm
$ 6.60
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493179)

Marquise Yellow Citrine

0.22 ct (total 1.33ctw)
6.1 x 3.1 mm
$ 6.65
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493182)

Marquise Yellow Citrine

0.22 ct (total 1.33ctw)
6.2 x 3 mm
$ 6.65
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493191)

Marquise Yellow Citrine

0.22 ct (total 1.34ctw)
6 x 3 mm
$ 6.70
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1 pc
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Chrome Green Tsavorite Garnet Gem - 0.3ct Marquise Facet (ID: 272966)

Marquise Green Tsavorite Garnet

0.3ct
6.1 x 3.1 mm
$ 41.58
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493393)

Marquise Yellow Citrine

0.23 ct (total 1.36ctw)
5.9 x 3 mm
$ 6.80
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493181)

Marquise Yellow Citrine

0.23 ct (total 1.37ctw)
5.9 x 2.9 mm
$ 6.85
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493189)

Marquise Yellow Citrine

0.23 ct (total 1.38ctw)
6.1 x 3 mm
$ 6.90
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493196)

Marquise Yellow Citrine

0.22 ct (total 1.34ctw)
6.1 x 3 mm
$ 6.70
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10 pcs
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Violet Amethyst Gem - 0.3ct Marquise Facet (ID: 493625)

Marquise Violet Amethyst

0.25 ct (total 2.51ctw)
6 x 3 mm
$ 12.55
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493188)

Marquise Yellow Citrine

0.24 ct (total 1.44ctw)
6.1 x 3 mm
$ 7.20
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6 pcs
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Yellow Citrine Gem - 0.2ct Marquise Facet (ID: 493199)

Marquise Yellow Citrine

0.23 ct (total 1.36ctw)
6 x 2.9 mm
$ 6.80
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6 pcs
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Yellow Citrine Gem - 0.3ct Marquise Facet (ID: 493198)

Marquise Yellow Citrine

0.29 ct (total 1.72ctw)
6.2 x 3.1 mm
$ 8.60
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.

Certified Customer Reviews
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I found a beautiful rose quartz stone in the right size for the right price.
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Gemselect is o.k the prices are pretty good, but the shipping prices really suck, one time I order from them and order got lost or never came, but they were good about fixing the problem and rectifying the situation, the stones and good, and the ones that come in the mail, look just as pictured on the website, or all it's not bad and its were I go to get my stones.
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Perfect experience. Pictures were accurate, selection was easy to maneuver. Product arrived as ordered.
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Easy to shop through gemselect and will look there for future purchases.
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Overall Rating -> 10 star ratings
good value
Posted By Don in February, 2019
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Overall Rating -> 10 star ratings
It was super easy to browse all the gemstones and find exactly what you wanted. The prices were great and the checkout process was smooth. Seems like a great site, will definitely come back to find more in the future.
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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