search
  • Sign In
    Sign Up
  • English speaking customer support only

    1-800-464-1640

    International:

    +66-39601289

  • Change Language
  • USD

Buy Marquise Shape 6x3 mm Gems

(67)
Weight Size Clarity Price Origin
More
Single
Pairs
Lots
Faceted
Cabochons
Sort By:
Clear All
0.24 ct Marquise Cut Iolite, 5.8 x 3 mm From Brazil, Photo A

0.24 ct Marquise Cut Iolite, 5.8 x 3 mm From Brazil

Iolite

0.24ct1 Piece
$ 9.60
5.8 x 3 mm
Add to Cart
Buy Now
1.77 ct Loose Marquise Cut Sapphire, 6 x 3.1 mm From Tanzania, Photo A

1.77 ct Loose Marquise Cut Sapphire, 6 x 3.1 mm From Tanzania

Sapphire

1.77ct (total)6 Pieces
$ 86.72
6 x 3.1 mm
Add to Cart
Buy Now
2.57 ct Marquise Cut Amethyst, 6 x 3.1 mm From Brazil, Photo A

2.57 ct Marquise Cut Amethyst, 6 x 3.1 mm From Brazil

Amethyst

2.57ct (total)10 Pieces
$ 14.14
6 x 3.1 mm
Add to Cart
Buy Now
2.13 ct Yellow Citrine, 6 x 2.9 mm Marquise Cut From Brazil, Photo A

2.13 ct Yellow Citrine, 6 x 2.9 mm Marquise Cut From Brazil

Citrine

2.13ct (total)10 Pieces
$ 11.72
6 x 2.9 mm
Add to Cart
Buy Now
0.15 ct Marquise Cut Iolite, 6.2 x 3 mm From Madagascar, Photo A

0.15 ct Marquise Cut Iolite, 6.2 x 3 mm From Madagascar

Iolite

0.15ct1 Piece
$ 6.00
6.2 x 3 mm
Add to Cart
Buy Now
1.47 ct Loose Pink Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania, Photo A

1.47 ct Loose Pink Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania

Sapphire

1.47ct (total)6 Pieces
$ 75.32
5.9 x 3 mm
Add to Cart
Buy Now
1.45 ct Loose Purple Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania, Photo A

1.45 ct Loose Purple Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania

Sapphire

1.45ct (total)6 Pieces
$ 74.29
5.9 x 3 mm
Add to Cart
Buy Now
1.71 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania, Photo A

1.71 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania

Sapphire

1.71ct (total)6 Pieces
$ 84.65
6 x 3.1 mm
Add to Cart
Buy Now
1.68 ct Loose Pink Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania, Photo A

1.68 ct Loose Pink Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania

Sapphire

1.68ct (total)6 Pieces
$ 86.08
5.9 x 3 mm
Add to Cart
Buy Now
1.46 ct Loose Purple Sapphire, 5.9 x 2.9 mm Marquise Cut From Tanzania, Photo A

1.46 ct Loose Purple Sapphire, 5.9 x 2.9 mm Marquise Cut From Tanzania

Sapphire

1.46ct (total)6 Pieces
$ 74.81
5.9 x 2.9 mm
Add to Cart
Buy Now
1.45 ct Yellow Citrine, 5.9 x 3.1 mm Marquise Cut From Brazil, Photo A

1.45 ct Yellow Citrine, 5.9 x 3.1 mm Marquise Cut From Brazil

Citrine

1.45ct (total)6 Pieces
$ 7.98
5.9 x 3.1 mm
Add to Cart
Buy Now
1.36 ct Yellow Citrine, 5.9 x 3 mm Marquise Cut From Brazil, Photo A

1.36 ct Yellow Citrine, 5.9 x 3 mm Marquise Cut From Brazil

Citrine

1.36ct (total)6 Pieces
$ 7.48
5.9 x 3 mm
Add to Cart
Buy Now
0.57 ct Loose London Blue Topaz, 6.1 x 3 mm Marquise Cut From Brazil, Photo A

0.57 ct Loose London Blue Topaz, 6.1 x 3 mm Marquise Cut From Brazil

Topaz

0.57ct (total)2 Pieces
$ 4.56
6.1 x 3 mm
Add to Cart
Buy Now
1.4 ct Loose Purple Sapphire, 5.8 x 2.9 mm Marquise Cut From Tanzania, Photo A

1.4 ct Loose Purple Sapphire, 5.8 x 2.9 mm Marquise Cut From Tanzania

Sapphire

1.40ct (total)6 Pieces
$ 69.30
5.8 x 2.9 mm
Add to Cart
Buy Now
1.72 ct Loose Yellow Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania, Photo A

1.72 ct Loose Yellow Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania

Sapphire

1.72ct (total)6 Pieces
$ 88.13
6 x 3.1 mm
Add to Cart
Buy Now
0.28 ct Marquise Cut Iolite, 5.8 x 2.9 mm From Brazil, Photo A

0.28 ct Marquise Cut Iolite, 5.8 x 2.9 mm From Brazil

Iolite

0.28ct1 Piece
$ 11.20
5.8 x 2.9 mm
Add to Cart
Buy Now
2.17 ct Yellow Citrine, 6.1 x 3 mm Marquise Cut From Brazil, Photo A

2.17 ct Yellow Citrine, 6.1 x 3 mm Marquise Cut From Brazil

Citrine

2.17ct (total)10 Pieces
$ 11.94
6.1 x 3 mm
Add to Cart
Buy Now
1.51 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania, Photo A

1.51 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania

Sapphire

1.51ct (total)6 Pieces
$ 74.75
6 x 3.1 mm
Add to Cart
Buy Now
2.19 ct Marquise Cut Amethyst, 5.9 x 3 mm From Brazil, Photo A

2.19 ct Marquise Cut Amethyst, 5.9 x 3 mm From Brazil

Amethyst

2.19ct (total)10 Pieces
$ 14.45
5.9 x 3 mm
Add to Cart
Buy Now
1.64 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania, Photo A

1.64 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania

Sapphire

1.64ct (total)6 Pieces
$ 84.03
6 x 3.1 mm
Add to Cart
Buy Now
1.65 ct Yellow Citrine, 6 x 3 mm Marquise Cut From Brazil, Photo A

1.65 ct Yellow Citrine, 6 x 3 mm Marquise Cut From Brazil

Citrine

1.65ct (total)6 Pieces
$ 9.08
6 x 3 mm
Add to Cart
Buy Now
1.34 ct Yellow Citrine, 6.1 x 3 mm Marquise Cut From Brazil, Photo A

1.34 ct Yellow Citrine, 6.1 x 3 mm Marquise Cut From Brazil

Citrine

1.34ct (total)6 Pieces
$ 7.37
6.1 x 3 mm
Add to Cart
Buy Now
1.92 ct Loose Yellow Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania, Photo A

1.92 ct Loose Yellow Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania

Sapphire

1.92ct (total)6 Pieces
$ 98.37
6 x 3.1 mm
Add to Cart
Buy Now
1.66 ct Yellow Citrine, 6.1 x 3.1 mm Marquise Cut From Brazil, Photo A

1.66 ct Yellow Citrine, 6.1 x 3.1 mm Marquise Cut From Brazil

Citrine

1.66ct (total)6 Pieces
$ 9.13
6.1 x 3.1 mm
Add to Cart
Buy Now
1.78 ct Loose Marquise Cut Sapphire, 6 x 3.1 mm From Tanzania, Photo A

1.78 ct Loose Marquise Cut Sapphire, 6 x 3.1 mm From Tanzania

Sapphire

1.78ct (total)6 Pieces
$ 88.11
6 x 3.1 mm
Add to Cart
Buy Now
1.47 ct Loose Purple Sapphire, 5.9 x 2.9 mm Marquise Cut From Tanzania, Photo A

1.47 ct Loose Purple Sapphire, 5.9 x 2.9 mm Marquise Cut From Tanzania

Sapphire

1.47ct (total)6 Pieces
$ 75.32
5.9 x 2.9 mm
Add to Cart
Buy Now
1.38 ct Loose Purple Sapphire, 6 x 2.9 mm Marquise Cut From Tanzania, Photo A

1.38 ct Loose Purple Sapphire, 6 x 2.9 mm Marquise Cut From Tanzania

Sapphire

1.38ct (total)6 Pieces
$ 70.71
6 x 2.9 mm
Add to Cart
Buy Now
2.43 ct Marquise Cut Amethyst, 6 x 3 mm From Brazil, Photo A

2.43 ct Marquise Cut Amethyst, 6 x 3 mm From Brazil

Amethyst

2.43ct (total)10 Pieces
$ 16.04
6 x 3 mm
Add to Cart
Buy Now
1.68 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania, Photo A

1.68 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania

Sapphire

1.68ct (total)6 Pieces
$ 83.16
6 x 3.1 mm
Add to Cart
Buy Now
1.65 ct Loose Purple Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania, Photo A

1.65 ct Loose Purple Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania

Sapphire

1.65ct (total)6 Pieces
$ 84.55
5.9 x 3 mm
Add to Cart
Buy Now
1.37 ct Loose Pink Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania, Photo A

1.37 ct Loose Pink Sapphire, 5.9 x 3 mm Marquise Cut From Tanzania

Sapphire

1.37ct (total)6 Pieces
$ 70.19
5.9 x 3 mm
Add to Cart
Buy Now
1.75 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania, Photo A

1.75 ct Loose Purple Sapphire, 6 x 3.1 mm Marquise Cut From Tanzania

Sapphire

1.75ct (total)6 Pieces
$ 89.67
6 x 3.1 mm
Add to Cart
Buy Now
1 2 3

Marquise Shape 6x3 mm Gems

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 6 mm x 3 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.

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

Posted By Meow in June, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Dave in February, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

The selection and filtering is a little overwhelming, but that's only because there is so much to choose from.

Posted By Kasper in June, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

Good experience

Posted By JR in January, 2023
Source: Bizrate

Overall Rating -> 8 star ratings

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

Posted By Ralli in August, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I loved my gem stones and i will order again and I would refer friends and family to purchase her in the future

Posted By Tina in October, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

It was great

Posted By Jp in January, 2023
Source: Bizrate

Overall Rating -> 7 star ratings

I ordered tsavorite garnet. It wasn’t quite as vidid color as I was expecting. Still a nice stone

Posted By Babs in October, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

I am new to gem collecting and GemSelect made it very easy to get started

Posted By Taylor in February, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I recommend to others

Posted By Kazzan in February, 2023
Source: Bizrate

Overall Rating -> 8 star ratings

Great selection, good prices and beautiful, simple user interface.

Posted By Swaggermuffinz in October, 2022
Source: Bizrate

Overall Rating -> 8 star ratings

I like to use GemSelect for finding calibrated sizes of gemstones. I purchased sapphires a few years ago and found the quality to be outstanding so I went ahead and purchased some more today (different) and some really unique moonstone. I'm opening a jewelry busy soon and so accurate gemstone sizes, quality, and reliability as a supplier is really important to me. Gemselect seems to fill all those requirements.

Posted By J in November, 2022
Source: Bizrate

Overall Rating -> 9 star ratings

I have been buy from you for years

Posted By JohnA in May, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

Have just ordered a couple birthstones, hopefully correct size for the setting. Excited to see!

Posted By Ellymae in March, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

It was fast purchasing procesos, very clear and precise, loved It

Posted By Sebastian in March, 2023
Source: Bizrate
STAY IN TOUCH
*You're signing up to receive GemSelect promotional email.
Partners and Trust Payment options

Switch to Mobile Version

Copyright © 2005-2023 GemSelect.com all rights reserved.

Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.

261