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 -> 10

the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

Posted By PixelComposer in January, 2024

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Overall Rating -> 10

Website was incredibly easy and fast to use. Navigation and product outlay was simple and enjoyable to browse. Thank you and have a blessed day!

Posted By Devi in October, 2023

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Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

Posted By NoHalalAl in March, 2024

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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.

Posted By APPS in April, 2024

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Overall Rating -> 10

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

Posted By Phoenix in February, 2024

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Overall Rating -> 10

blessed be the lord blessed be the saved blessed be the work blessed be the traveled i write down my good times in these stones and when times are gray i can still se the sunny days refract in these stones

Posted By Kickbass.2 in May, 2023

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Overall Rating -> 10

i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

Posted By Jf in January, 2024

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Overall Rating -> 10

Easy and fast

Posted By Mark in February, 2024

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Overall Rating -> 10

I have actually done business with them before and was quite satisfied with them then.My Mother collected turtle items and when I saw the Mother of Pearl turtle...I just thought of her and decided to buy it. It's even tinier than I thought, but so adorable!The gemstones I bought are for jewelry for my daughter's birthday.

Posted By Ktreva52 in February, 2024

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Overall Rating -> 10

Very detailed and great pictures

Posted By Alexandrite in November, 2023

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Overall Rating -> 10

Great selection of various gems, easy to navigate site

Posted By Josh in August, 2023

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Overall Rating -> 10

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

Posted By Phoenix in March, 2024

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Overall Rating -> 10

No issues at all. It was great.

Posted By LJXK in May, 2023

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Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

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Overall Rating -> 10

My overall interaction with your website was pleasant, as always.

Posted By RJ in April, 2024

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Gemstones A-Z

Buy Marquise Shape 10x5 mm Gems

1.52 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gems, 8 x 6.1 mm

4.75 ct Loose Rhomb Cut Smoky Quartz, 21.8 x 9 mm From Brazil

1.74 ct Orange Sunstone, 9.2 x 7.3 mm Oval Cut From India

1.93 ct Green Sphene, 7.7 x 6.3 mm Oval Cut From Sri Lanka

2.24 ct Oval Prehnite, 8.6 x 7.2 mm From South Africa

27.57 carat Blue Aquamarine, Oval loose Aquamarine from Madagascar, Natural Untreated Gem, 25.9 x 16.4 mm

1.63 ct Oval Carnelian, 9.2 x 7 mm From India

1.02 carat Blue Sapphire, Marquise-Cut loose Sapphire from Madagascar, Natural Gem, 9 x 4.6 mm

6.7 ct Oval Strawberry Quartz, 12.7 x 10.6 mm From Russia

1.36 ct Oval Cut Peridot, 7 x 5 mm From China

12.47 carat Cameo Mother of Pearl, loose Certified Mother of Pearl from China, Natural Gem, 25 mm

1.65 ct Purple Spinel, 7.6 x 6.9 mm Cushion Cut From Tanzania

1.72 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 7 x 7 mm

0.63 ct Orange Sphalerite, 5.5 x 4.5 mm Oval Cut From Spain

0.67 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.4 x 4.4 mm

3.87 ct Orange Moonstone, 11.1 mm Round Cut From India

3.59 ct Red Andesine Labradorite, 11.2 x 9.1 mm Oval Cut From Congo

2.76 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 8.9 x 8.9 mm

2.47 carat Sky Blue Topaz, Trillion loose Topaz from Brazil, Natural Gems, 6.9 x 6.8 mm

5.99 ct Pink Morganite, 12 x 11.8 mm Trillion Cut From Afghanistan

6.1 ct Cushion Tiger's Eye, 10.4 x 10.2 mm From Thailand

1.13 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 7 x 7 mm

3.45 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 6.6 mm

2.09 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.1 mm

9.59 ct Fancy Fire Agate, 19.3 x 9.5 mm From Mexico

0.4 ct Blue Apatite, 3.5 mm Round Cut From Madagascar

17.27 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 25 x 10.7 mm

5.66 ct Pink Morganite, 13.7 x 10 mm Oval Cut From Afghanistan

25.57 ct Green Agate, 20.8 mm Round Cut From India

0.77 ct Octagon Cut Color-Change Diaspore, 5.9 x 4.6 mm From Turkey

6.76 ct Round Cut Smoky Quartz, 13 mm From Brazil

4.24 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.8 x 7.9 mm

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