Marquise Shape 20 x 10 mm calibrated natural loose gems from GemSelect

Item Description
Stone Type:	Loose Amethyst
Amethyst Weight:	7.16 ct Amethyst
Amethyst Shape:	Marquise Facet Amethyst
Amethyst Size:	19.5 x 9.7 mm Amethyst
Amethyst Color:	Medium Purplish Violet Amethyst
Amethyst Clarity:	VVS-VS Amethyst
Amethyst Origin:	Brazil Amethyst
Amethyst Treatment:	Untreated
Amethyst Quantity:	1
Amethyst Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Amethyst
Amethyst Weight:	6.15 ct Amethyst
Amethyst Shape:	Marquise Facet Amethyst
Amethyst Size:	19.5 x 9.8 mm Amethyst
Amethyst Color:	Medium Purplish Violet Amethyst
Amethyst Clarity:	VS Amethyst
Amethyst Origin:	Brazil Amethyst
Amethyst Treatment:	Untreated
Amethyst Quantity:	1
Amethyst Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Amethyst
Amethyst Weight:	6.79 ct Amethyst
Amethyst Shape:	Marquise Facet Amethyst
Amethyst Size:	19.7 x 9.8 mm Amethyst
Amethyst Color:	Purplish Violet Amethyst
Amethyst Clarity:	VS Amethyst
Amethyst Origin:	Brazil Amethyst
Amethyst Treatment:	Untreated
Amethyst Quantity:	1
Amethyst Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Amethyst
Amethyst Weight:	6.76 ct Amethyst
Amethyst Shape:	Marquise Facet Amethyst
Amethyst Size:	19.5 x 10.2 mm Amethyst
Amethyst Color:	Medium Violet Amethyst
Amethyst Clarity:	VS Amethyst
Amethyst Origin:	Brazil Amethyst
Amethyst Treatment:	Untreated
Amethyst Quantity:	1
Amethyst Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Amethyst
Amethyst Weight:	7.10 ct Amethyst
Amethyst Shape:	Marquise Facet Amethyst
Amethyst Size:	20 x 9.8 mm Amethyst
Amethyst Color:	Deep Purplish Violet Amethyst
Amethyst Clarity:	VVS Amethyst
Amethyst Origin:	Brazil Amethyst
Amethyst Treatment:	Untreated
Amethyst Quantity:	1
Amethyst Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Amethyst
Amethyst Weight:	8.06 ct Amethyst
Amethyst Shape:	Marquise Facet Amethyst
Amethyst Size:	19.2 x 9.7 mm Amethyst
Amethyst Color:	Deep Purplish Violet Amethyst
Amethyst Clarity:	VS-SI Amethyst
Amethyst Origin:	Brazil Amethyst
Amethyst Treatment:	Untreated
Amethyst Quantity:	1
Amethyst Certificate:	GemSelect
Product Description:

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 20 mm x 10 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

Very good, very fast, everything as described.

Posted By B in October, 2023

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 -> 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

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

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Overall Rating -> 10

it was good

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Overall Rating -> 10

Easy to use.

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Overall Rating -> 10

I love the clear description of the certification options. It's very rare to see a gem site that offers a deep explanation of each institution that would certify the stone(s).

Posted By Oakcityceo in May, 2023

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Overall Rating -> 10

Great selection and excellent website.

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Overall Rating -> 8

Many gems at reasonable pricing

Posted By Skittlebird in May, 2024

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Overall Rating -> 10

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

Posted By Apps in September, 2023

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Overall Rating -> 10

This is only the second time I have ordered from GemSelect. I am a prolific gemstone collector and I wish I had found this site sooner!

Posted By Beachcomber in September, 2023

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Overall Rating -> 10

Easy to use website, made it very easy to buy. Will shop here again.

Posted By Bjorn in January, 2024

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Overall Rating -> 10

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

Posted By Nikki J in September, 2023

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Overall Rating -> 10

I enjoyed browsing though different varieties of rubies. I felt that the experience was simple and easy to navigate!

Posted By Daws in July, 2023

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Overall Rating -> 10

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

Posted By Kate in December, 2023

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Selected Gemstones

Gemstones A-Z

Buy Marquise Shape 20x10 mm Gems

7.16 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 19.5 x 9.7 mm

Buy Natural Amethyst, Qty: 1 pc | 7.16 carat weight Amethyst

6.15 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 19.5 x 9.8 mm

Buy Natural Amethyst, Qty: 1 pc | 6.15 carat weight Amethyst

6.79 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 19.7 x 9.8 mm

Buy Natural Amethyst, Qty: 1 pc | 6.79 carat weight Amethyst

6.76 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 19.5 x 10.2 mm

Buy Natural Amethyst, Qty: 1 pc | 6.76 carat weight Amethyst

7.1 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 20 x 9.8 mm

Buy Natural Amethyst, Qty: 1 pc | 7.10 carat weight Amethyst

8.06 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 19.2 x 9.7 mm

Buy Natural Amethyst, Qty: 1 pc | 8.06 carat weight Amethyst

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