Marquise Shape 16 x 8 mm calibrated natural loose gems from GemSelect

4.38 ct Rainbow Pyrite, 16.1 x 8.2 mm From Russia

Natural Rainbow Pyrite, Qty: 1 pc | 4.38 carat weight Rainbow Pyrite

4.38ct1 Piece

$ 11.39

16.1 x 8.2 mm

Item Description
Stone Type:	Loose Rainbow Pyrite
Rainbow Pyrite Weight:	4.38 ct Rainbow Pyrite
Rainbow Pyrite Shape:	Marquise Crystal Cluster Rainbow Pyrite
Rainbow Pyrite Size:	16.1 x 8.2 mm Rainbow Pyrite
Rainbow Pyrite Color:	Multicolor Rainbow Pyrite
Rainbow Pyrite Clarity:	Opaque Rainbow Pyrite
Rainbow Pyrite Origin:	Russia Rainbow Pyrite
Rainbow Pyrite Treatment:	Untreated
Rainbow Pyrite Quantity:	1
Rainbow Pyrite Certificate:	GemSelect
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11.44 ct Marquise Slice Ruby in Fuchsite, 16 x 7.8 mm From Ethiopia

Natural Ruby in Fuchsite, Qty: 4 pcs | 11.44 carat weight Ruby in Fuchsite

11.44ct (total)4 Pieces

$ 84.82

16 x 7.8 mm

Item Description
Stone Type:	Loose Ruby in Fuchsite
Ruby in Fuchsite Weight:	2.86 ct Ruby in Fuchsite
Ruby in Fuchsite Shape:	Marquise Slice Ruby in Fuchsite
Ruby in Fuchsite Size:	16 x 7.8 mm Ruby in Fuchsite
Ruby in Fuchsite Color:	Multicolor Ruby in Fuchsite
Ruby in Fuchsite Clarity:	Translucent Ruby in Fuchsite
Ruby in Fuchsite Origin:	Ethiopia Ruby in Fuchsite
Ruby in Fuchsite Treatment:	Untreated
Ruby in Fuchsite Quantity:	4
Ruby in Fuchsite Certificate:	GemSelect
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10.96 ct Loose Marquise Labradorite, 15.9 x 8.1 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.96 carat weight Labradorite

10.96ct (total)2 Pieces

$ 24.33

15.9 x 8.1 mm

Item Description
Stone Type:	Loose Labradorite
Labradorite Weight:	5.48 ct Labradorite
Labradorite Shape:	Marquise Cabochon Labradorite
Labradorite Size:	15.9 x 8.1 mm Labradorite
Labradorite Color:	Multicolor Labradorite
Labradorite Clarity:	Translucent Labradorite
Labradorite Origin:	Madagascar Labradorite
Labradorite Treatment:	Untreated
Labradorite Quantity:	2
Labradorite Certificate:	GemSelect
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10.46 ct Loose Marquise Labradorite, 15.9 x 8 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.46 carat weight Labradorite

10.46ct (total)2 Pieces

$ 23.22

15.9 x 8 mm

Item Description
Stone Type:	Loose Labradorite
Labradorite Weight:	5.23 ct Labradorite
Labradorite Shape:	Marquise Cabochon Labradorite
Labradorite Size:	15.9 x 8 mm Labradorite
Labradorite Color:	Multicolor Labradorite
Labradorite Clarity:	Translucent Labradorite
Labradorite Origin:	Madagascar Labradorite
Labradorite Treatment:	Untreated
Labradorite Quantity:	2
Labradorite Certificate:	GemSelect
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4.16 ct Marquise Slice Ruby in Fuchsite, 16.6 x 8.2 mm From Ethiopia

Natural Ruby in Fuchsite, Qty: 1 pc | 4.16 carat weight Ruby in Fuchsite

4.16ct1 Piece

$ 30.84

16.6 x 8.2 mm

Item Description
Stone Type:	Loose Ruby in Fuchsite
Ruby in Fuchsite Weight:	4.16 ct Ruby in Fuchsite
Ruby in Fuchsite Shape:	Marquise Slice Ruby in Fuchsite
Ruby in Fuchsite Size:	16.6 x 8.2 mm Ruby in Fuchsite
Ruby in Fuchsite Color:	Multicolor Ruby in Fuchsite
Ruby in Fuchsite Clarity:	Translucent Ruby in Fuchsite
Ruby in Fuchsite Origin:	Ethiopia Ruby in Fuchsite
Ruby in Fuchsite Treatment:	Untreated
Ruby in Fuchsite Quantity:	1
Ruby in Fuchsite Certificate:	GemSelect
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9.99 ct Loose Marquise Labradorite, 15.9 x 8 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 9.99 carat weight Labradorite

9.99ct (total)2 Pieces

$ 22.18

15.9 x 8 mm

Item Description
Stone Type:	Loose Labradorite
Labradorite Weight:	5.00 ct Labradorite
Labradorite Shape:	Marquise Cabochon Labradorite
Labradorite Size:	15.9 x 8 mm Labradorite
Labradorite Color:	Multicolor Labradorite
Labradorite Clarity:	Translucent Labradorite
Labradorite Origin:	Madagascar Labradorite
Labradorite Treatment:	Untreated
Labradorite Quantity:	2
Labradorite Certificate:	GemSelect
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6.45 ct Marquise Slice Ruby in Fuchsite, 16 x 7.8 mm From Ethiopia

Natural Ruby in Fuchsite, Qty: 2 pcs | 6.45 carat weight Ruby in Fuchsite

6.45ct (total)2 Pieces

$ 47.82

16 x 7.8 mm

Item Description
Stone Type:	Loose Ruby in Fuchsite
Ruby in Fuchsite Weight:	3.23 ct Ruby in Fuchsite
Ruby in Fuchsite Shape:	Marquise Slice Ruby in Fuchsite
Ruby in Fuchsite Size:	16 x 7.8 mm Ruby in Fuchsite
Ruby in Fuchsite Color:	Multicolor Ruby in Fuchsite
Ruby in Fuchsite Clarity:	Translucent Ruby in Fuchsite
Ruby in Fuchsite Origin:	Ethiopia Ruby in Fuchsite
Ruby in Fuchsite Treatment:	Untreated
Ruby in Fuchsite Quantity:	2
Ruby in Fuchsite Certificate:	GemSelect
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10.21 ct Marquise Labradorite, 15.8 x 7.9 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.21 carat weight Labradorite

10.21ct (total)2 Pieces

$ 13.26

15.8 x 7.9 mm

Item Description
Stone Type:	Loose Labradorite
Labradorite Weight:	5.11 ct Labradorite
Labradorite Shape:	Marquise Cabochon Labradorite
Labradorite Size:	15.8 x 7.9 mm Labradorite
Labradorite Color:	Multicolor Labradorite
Labradorite Clarity:	Translucent Labradorite
Labradorite Origin:	Madagascar Labradorite
Labradorite Treatment:	Untreated
Labradorite Quantity:	2
Labradorite Certificate:	GemSelect
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10.35 ct Marquise Labradorite, 15.8 x 7.9 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.35 carat weight Labradorite

10.35ct (total)2 Pieces

$ 13.43

15.8 x 7.9 mm

Item Description
Stone Type:	Loose Labradorite
Labradorite Weight:	5.18 ct Labradorite
Labradorite Shape:	Marquise Cabochon Labradorite
Labradorite Size:	15.8 x 7.9 mm Labradorite
Labradorite Color:	Multicolor Labradorite
Labradorite Clarity:	Translucent Labradorite
Labradorite Origin:	Madagascar Labradorite
Labradorite Treatment:	Untreated
Labradorite Quantity:	2
Labradorite Certificate:	GemSelect
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3.62 ct Marquise Slice Ruby in Fuchsite, 15.7 x 8.3 mm From Ethiopia

Natural Ruby in Fuchsite, Qty: 1 pc | 3.62 carat weight Ruby in Fuchsite

3.62ct1 Piece

$ 26.84

15.7 x 8.3 mm

Item Description
Stone Type:	Loose Ruby in Fuchsite
Ruby in Fuchsite Weight:	3.62 ct Ruby in Fuchsite
Ruby in Fuchsite Shape:	Marquise Slice Ruby in Fuchsite
Ruby in Fuchsite Size:	15.7 x 8.3 mm Ruby in Fuchsite
Ruby in Fuchsite Color:	Multicolor Ruby in Fuchsite
Ruby in Fuchsite Clarity:	Translucent Ruby in Fuchsite
Ruby in Fuchsite Origin:	Ethiopia Ruby in Fuchsite
Ruby in Fuchsite Treatment:	Untreated
Ruby in Fuchsite Quantity:	1
Ruby in Fuchsite Certificate:	GemSelect
Product Description:

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10.18 ct Marquise Labradorite, 15.9 x 7.8 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.18 carat weight Labradorite

10.18ct (total)2 Pieces

$ 13.21

15.9 x 7.8 mm

Item Description
Stone Type:	Loose Labradorite
Labradorite Weight:	5.09 ct Labradorite
Labradorite Shape:	Marquise Cabochon Labradorite
Labradorite Size:	15.9 x 7.8 mm Labradorite
Labradorite Color:	Multicolor Labradorite
Labradorite Clarity:	Translucent Labradorite
Labradorite Origin:	Madagascar Labradorite
Labradorite Treatment:	Untreated
Labradorite Quantity:	2
Labradorite Certificate:	GemSelect
Product Description:

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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 16 mm x 8 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 customer service. I had an issue on my end with shipping and I received a response the next day!

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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.

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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

The website is user friendly, has excellent selection. I've always found what I was looking for with Gem Select. When others don't have it they do. And most important, they have a way for you to pay without using PayPal. I cannot use PayPal they closed my account because of no cell phone.

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Overall Rating -> 10

I was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

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Overall Rating -> 9

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Overall Rating -> 10

Todo muy bien en la compra ahora esperar recibir el pedido.

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Overall Rating -> 9

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

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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

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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

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

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Selected Gemstones

Gemstones A-Z

Buy Marquise Shape 16x8 mm Gems

4.38 ct Rainbow Pyrite, 16.1 x 8.2 mm From Russia

Natural Rainbow Pyrite, Qty: 1 pc | 4.38 carat weight Rainbow Pyrite

11.44 ct Marquise Slice Ruby in Fuchsite, 16 x 7.8 mm From Ethiopia

Natural Ruby in Fuchsite, Qty: 4 pcs | 11.44 carat weight Ruby in Fuchsite

10.96 ct Loose Marquise Labradorite, 15.9 x 8.1 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.96 carat weight Labradorite

10.46 ct Loose Marquise Labradorite, 15.9 x 8 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.46 carat weight Labradorite

4.16 ct Marquise Slice Ruby in Fuchsite, 16.6 x 8.2 mm From Ethiopia

Natural Ruby in Fuchsite, Qty: 1 pc | 4.16 carat weight Ruby in Fuchsite

9.99 ct Loose Marquise Labradorite, 15.9 x 8 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 9.99 carat weight Labradorite

6.45 ct Marquise Slice Ruby in Fuchsite, 16 x 7.8 mm From Ethiopia

Natural Ruby in Fuchsite, Qty: 2 pcs | 6.45 carat weight Ruby in Fuchsite

10.21 ct Marquise Labradorite, 15.8 x 7.9 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.21 carat weight Labradorite

10.35 ct Marquise Labradorite, 15.8 x 7.9 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.35 carat weight Labradorite

3.62 ct Marquise Slice Ruby in Fuchsite, 15.7 x 8.3 mm From Ethiopia

Natural Ruby in Fuchsite, Qty: 1 pc | 3.62 carat weight Ruby in Fuchsite

10.18 ct Marquise Labradorite, 15.9 x 7.8 mm From Madagascar

Natural Labradorite, Qty: 2 pcs | 10.18 carat weight Labradorite

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