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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (600): Marquise Shape 10x5 mm Gems Clear All
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Multicolor Opal Gem - 0.8ct Marquise Cabochon (ID: 515845)

Marquise Multicolor Opal

0.8ct
9.9 x 5.1 mm
$ 16.72
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Rose Malaya Garnet Gem - 1.2ct Marquise Facet (ID: 520343)

Marquise Orange Malaya Garnet

1.2ct
9.9 x 4.8 mm
$ 50.82
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2 pcs
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Red Pyrope Garnet Gem - 1.3ct Marquise Facet (ID: 479206)

Marquise Red Pyrope Garnet

1.31 ct (total 2.62ctw)
10 x 5.1 mm
$ 20.96
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Orange Carnelian Gem - 1.1ct Marquise Facet (ID: 514764)

Marquise Orange Carnelian

1.1ct
10.2 x 5.2 mm
$ 4.52
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Deep Blue Sapphire Gem - 0.8ct Marquise Facet (ID: 509735)

Marquise Blue Sapphire

0.8ct
9.7 x 5 mm
$ 162.00
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Red Pyrope Garnet Gem - 1ct Marquise Facet (ID: 479568)

Marquise Red Pyrope Garnet

1.00 ct (total 1.99ctw)
9.9 x 4.9 mm
$ 15.92
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Red Pyrope Garnet Gem - 0.9ct Marquise Facet (ID: 479325)

Marquise Red Pyrope Garnet

0.90 ct (total 1.79ctw)
10 x 5 mm
$ 14.32
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Red Pyrope Garnet Gem - 1ct Marquise Facet (ID: 479566)

Marquise Red Pyrope Garnet

1.00 ct (total 2.00ctw)
10.1 x 5 mm
$ 16.00
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Red Pyrope Garnet Gem - 1.3ct Marquise Facet (ID: 479153)

Marquise Red Pyrope Garnet

1.29 ct (total 2.57ctw)
10.2 x 5.1 mm
$ 20.56
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Red Pyrope Garnet Gem - 1.2ct Marquise Facet (ID: 479624)

Marquise Red Pyrope Garnet

1.24 ct (total 2.47ctw)
10 x 5.1 mm
$ 19.76
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Red Pyrope Garnet Gem - 1.2ct Marquise Facet (ID: 479380)

Marquise Red Pyrope Garnet

1.2ct
9.9 x 5.1 mm
$ 9.28
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Red Pyrope Garnet Gem - 1ct Marquise Facet (ID: 479404)

Marquise Red Pyrope Garnet

1.01 ct (total 2.01ctw)
9.9 x 5 mm
$ 16.08
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Golden Green Chrysoberyl Gem - 1.3ct Marquise Facet (ID: 366359)

Marquise Green Chrysoberyl

1.3ct
10.2 x 5.1 mm
$ 134.10
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Red Pyrope Garnet Gem - 1.2ct Marquise Facet (ID: 479156)

Marquise Red Pyrope Garnet

1.18 ct (total 2.35ctw)
10 x 5.1 mm
$ 18.80
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Red Pyrope Garnet Gem - 1.1ct Marquise Facet (ID: 479411)

Marquise Red Pyrope Garnet

1.14 ct (total 2.27ctw)
10.1 x 5.1 mm
$ 18.16
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Red Pyrope Garnet Gem - 1.3ct Marquise Facet (ID: 479638)

Marquise Red Pyrope Garnet

1.31 ct (total 2.61ctw)
10 x 5.1 mm
$ 20.88
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Red Pyrope Garnet Gem - 0.9ct Marquise Facet (ID: 479080)

Marquise Red Pyrope Garnet

0.92 ct (total 1.83ctw)
9.9 x 5 mm
$ 14.64
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Red Pyrope Garnet Gem - 1.3ct Marquise Facet (ID: 479653)

Marquise Red Pyrope Garnet

1.28 ct (total 2.56ctw)
9.9 x 5 mm
$ 20.48
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Red Pyrope Garnet Gem - 1.1ct Marquise Facet (ID: 479630)

Marquise Red Pyrope Garnet

1.12 ct (total 2.24ctw)
10.2 x 5.1 mm
$ 17.92
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Red Pyrope Garnet Gem - 1.2ct Marquise Facet (ID: 479288)

Marquise Red Pyrope Garnet

1.19 ct (total 2.38ctw)
10 x 5.2 mm
$ 19.04
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Pinkish Violet Spinel Gem - 1.1ct Marquise Facet (ID: 350541)

Marquise Violet Spinel

1.1ct
9.9 x 4.9 mm
$ 79.50
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Marquise Shape 10x5 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 10 mm x 5 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
Overall Rating -> 10 star ratings
man their gems are pretty good, and the prices aren't to bad either, I like checking out hte gems on there website, beceause the pictures of the gems are taken pretty well, and you can see the table, and the facets.
Posted By Spinach in March, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
I love gemselect and I have bought a fair amount from them. The only complaint I have is not being able to save gems. I have a lot of projects so i am in the market for a lot of different gems and it's so disappointing to have to delete them all just to purchase one or two that I have saved in my cart.
Posted By S.Hicks in March, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
I always check this site because they have unique options.
Posted By Lisa in February, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
Great website to navigate. Awesome Gem selection! Nice photos and discriptions for all of the gems for sale. You can find gems in all price ranges. Checkout was a breeze.
Posted By Timmy in February, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
They had an extensive gemstone selection in all different cuts, sizes, and colors. They also had very good and workable prices. All of these aspects pulled me in as a customer.
Posted By Josh in February, 2019
Source: Bizrate
Overall Rating -> 9 star ratings
It all depend on the product I will receive and have it verified by my in law jewellers.
Posted By Vodka in February, 2019
Source: Bizrate
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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