Marquise Shape 10 x 5 mm calibrated natural loose gems from GemSelect

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.

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Overall Rating -> 9

over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

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Overall Rating -> 10

I have had and will always have a great time shopping at GemSelect. It's a great web site with great products and great service.

Posted By Apps in November, 2023

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Overall Rating -> 10

LOVE YOU GUYS. YOU CARRY EVERY GEMSTON I WANT. THE PRICE IS GREAT,THE PRODUCT IS OUTSTANDING,AND THE SERVICE CANT BE BEET.

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Overall Rating -> 10

I bought a small ring green so I may practice my jewelry making.

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Overall Rating -> 10

Gem Select has gems at afffordable prices.

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Overall Rating -> 10

My first order. I am anxious to see if what I ordered is what I receive.

Posted By KRJ in July, 2023

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Overall Rating -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024

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Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

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Overall Rating -> 10

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Overall Rating -> 10

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Overall Rating -> 10

I have used Gem Select many times over the past 10 years and have always been happy with the product & services

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Overall Rating -> 8

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Overall Rating -> 10

Love Gem select. great gems for the price. Can't beet them

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Gemstones A-Z

Buy Marquise Shape 10x5 mm Gems

3.34 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.1 x 9.1 mm

81.18 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 27.8 x 25.3 mm

0.4 ct Orange Sphalerite, 4.4 mm Round Cut From Spain

24.76 ct Cushion Lapis Lazuli, 20 x 15 mm From Afghanistan

0.43 carat London Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 7.8 x 3.8 mm

0.56 carat Blue Sapphire, Trillion-Cut loose Sapphire from Madagascar, Natural Gem, 5.3 x 5.1 mm

0.8 carat Green Sapphire, Oval loose Sapphire from Tanzania, Natural Gem, 6 x 5.1 mm

24.15 ct Oval Bloodstone, 26.5 x 19.3 mm From Madagascar

0.64 carat Round Opal, loose Certified Opal from Ethiopia, Natural Gem, 6.8 mm

7.62 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 16.1 x 12 mm

18.74 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 19.7 x 15.8 mm

1.14 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7.2 x 5 mm

5.46 ct Oval Tiger's Eye, 10.1 x 10 mm From Thailand

1.62 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gems, 8.1 x 6.2 mm

1.42 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 10.4 x 6.3 mm

3.77 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.8 x 3.9 mm

6.19 carat Pear Shape Smoky Quartz, loose Certified Smoky Quartz from Brazil, Natural Untreated Gem, 15.1 x 11.1 mm

3.37 carat Green Sapphire, Oval loose Sapphire from Tanzania, Natural Gems, 6.1 x 5 mm

0.16 ct Black Diamond, 2.1 x 2 mm Princess Cut From India

14.93 ct Yellow Apatite, 16.2 x 13.4 mm Oval Cut From Madagascar

5.55 ct Round Rutile Quartz, 13.2 mm From India

1.55 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.9 x 5 mm

1.9 carat Yellow Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.8 mm

10.26 ct Yellow Quartz, 15.1 mm Round Concave Cut From Brazil

0.7 ct Loose Orange Sapphire, 6.1 x 4 mm Oval Cut From Tanzania

4.5 carat Yellow Citrine, Emerald Cut loose Citrine from Bolivia, Natural Untreated Gem, 10.9 x 9 mm

66.56 ct Multicolor Jasper, 32.9 x 27.7 mm Oval Cut From Indonesia

67.71 ct Odd Shaped Druzy Amethyst, 34.2 x 25.2 mm From Brazil

17.02 ct Oval Jasper, 22.7 x 17.8 mm From Mexico

1.28 ct Loose Yellow Sapphire, 5.9 x 4.9 mm Oval Cut From Tanzania

0.84 ct Loose Pink Sapphire, 5 x 4 mm Oval Cut From Tanzania

6.64 carat Brown Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 12.8 x 9.9 mm

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