Marquise Shape 4 x 2 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 4 mm x 2 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

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

Source: Bizrate

Overall Rating -> 8

Found on a search engine. Scanned inventory and made a small purchase.

Posted By Ralli in August, 2023

Source: Bizrate

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

The site was easy to shop and the payment was secure. I’m looking forward to receiving my order!

Posted By JAB93 in June, 2023

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Overall Rating -> 10

Great selection and excellent website.

Posted By JBW in October, 2023

Source: Bizrate

Overall Rating -> 10

Easy and fast

Posted By Mark in February, 2024

Source: Bizrate

Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

Source: Bizrate

Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

Posted By Mr. Bezel in July, 2023

Source: Bizrate

Overall Rating -> 10

Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

Posted By DanM in November, 2023

Source: Bizrate

Overall Rating -> 10

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023

Source: Bizrate

Overall Rating -> 10

I’ve enjoyed purchasing stones from this site. It’s convenient and fairly priced.

Posted By Chico in May, 2023

Source: Bizrate

Overall Rating -> 10

I have used GemSelect for several years and plan to shop more in the further. This is a good source of information on gemstones. I love looking at and learning about them. Lot more than I ever knew existed.

Posted By Bikerwalrus in October, 2023

Source: Bizrate

Overall Rating -> 10

Easy to use,I have spent many hours looking at the site

Posted By Skip in November, 2023

Source: Bizrate

Overall Rating -> 9

Overall good, shipping prices just seem a little on the high side.

Posted By Steve in August, 2023

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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

Source: Bizrate

Gemstones A-Z

Buy Marquise Shape 4x2 mm Gems

1.7 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.1 mm

4.8 carat Yellow Citrine, loose Citrine from Brazil, Natural Untreated Gems, 14.1 x 7 mm

3.72 carat Pear Dendritic Agate, loose Certified Dendritic Agate from India, Natural Untreated Gem, 13.2 x 9 mm

2.91 ct Loose Orange Sapphire, 10.6 x 7.1 mm Oval Cut From Thailand

0.83 carat Green Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 6.7 x 4.9 mm

29.56 ct Carved Prehnite, 16.9 x 12.5 mm From South Africa

10.67 ct Octagon Concave Cut Smoky Quartz, 14.9 x 14.9 mm From Brazil

18.71 ct Oval Serpentine, 22.1 x 17.9 mm From the United States

29.82 ct Yellow Quartz, 27.6 x 22.5 mm Carved From Brazil

1.21 ct Blue Kyanite, 7.1 x 5.1 mm Oval Cut From Nepal

7.34 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 15.1 x 7.2 mm

0.96 ct Pink Morganite, 7.1 mm Round Cut From Afghanistan

4.49 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 6 mm

6.42 ct White Moonstone, 9.2 mm Round Cut From India

1.11 ct Pink Morganite, 6.8 mm Round Cut From Afghanistan

2.88 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.6 mm

36.16 ct Cushion Obsidian, 31.5 x 22.1 mm From India

19.13 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.2 x 14.1 mm

2.62 ct Loose Trillion Cut Amethyst, 10.1 x 9.9 mm From Brazil

2.18 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.2 mm

0.96 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 4.7 mm

1.91 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.1 x 6 mm

1.2 carat London Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 9.5 x 4.9 mm

0.47 ct Loose Pink Sapphire, 6.1 x 4 mm Oval Cut From Madagascar

2.9 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 13.5 x 10.1 mm

15.39 ct Pink Coral, 24.8 x 19.5 mm Carved From Taiwan

1.62 ct Loose Oval Cut Black Opal, 12.9 x 6.8 mm From Ethiopia

4.82 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 8 x 5.1 mm

0.29 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.9 x 3.8 mm

4.4 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.2 x 9.1 mm

7.73 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 14.1 x 10.2 mm

4.73 carat Blue Sapphire, Pear Shape loose Sapphire from Sri Lanka, Natural Gem, 10.7 x 10.3 mm

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