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Calibrated Marquise Cut Gemstones in Size 12x6 mm

Marquise Shape 12x6 mm Gems Weight
Marquise Shape 12x6 mm Gems Size
Marquise Shape 12x6 mm Gems Clarity
Marquise Shape 12x6 mm Gems Price
Marquise Shape 12x6 mm Gems Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue Marquise Shape 12x6 mm Gems
Brown Marquise Shape 12x6 mm Gems
Golden
Gray
Green
Multicolor Marquise Shape 12x6 mm Gems
Orange
Pink
Purple
Red Marquise Shape 12x6 mm Gems
Turquoise
Violet Marquise Shape 12x6 mm Gems
White Marquise Shape 12x6 mm Gems
Yellow Marquise Shape 12x6 mm Gems
Single
Pairs
Lots
Faceted
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4.07ctw Blue Topaz, Marquise, VVS

12.1 x 6.2 mm

$ 22.30

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3.82ctw Red Pyrope Garnet, Marquise, VVS-VS

12.1 x 6 mm

$ 33.48

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1.44ct Violet Amethyst, Marquise, VS

12.2 x 5.9 mm

$ 9.46

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4.15ctw Blue Topaz, Marquise, VVS-VS

12.1 x 6.2 mm

$ 22.74

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3.76ctw Red Pyrope Garnet, Marquise, VS

12.1 x 6.1 mm

$ 65.92

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3.56ctw Red Pyrope Garnet, Marquise, VVS-VS

12.1 x 6.1 mm

$ 31.21

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1.82ct Violet Amethyst, Marquise, VS

12.1 x 6 mm

$ 13.95

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3.76ctw Blue Topaz, Marquise, VVS-VS

11.9 x 6.2 mm

$ 20.60

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4.78ctw Blue Topaz, Marquise, VVS

12 x 6 mm

$ 26.19

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4.48ctw Blue Topaz, Marquise, VVS-VS

12.1 x 6 mm

$ 24.54

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3.97ctw Red Pyrope Garnet, Marquise, VVS

11.9 x 5.9 mm

$ 34.80

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4.37ctw Red Pyrope Garnet, Marquise, VVS-VS

12.1 x 6 mm

$ 23.95

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2.30ct Multicolor Labradorite, Marquise, Translucent

12 x 6 mm (calibrated)

$ 5.09

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4.37ctw Blue Topaz, Marquise, VVS-VS

12.2 x 6.2 mm

$ 23.95

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3.82ctw Red Pyrope Garnet, Marquise, VVS-VS

12 x 6 mm

$ 33.48

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3.67ctw Red Pyrope Garnet, Marquise, VVS-VS

11.8 x 5.9 mm

$ 32.17

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4.05ctw Red Pyrope Garnet, Marquise, VVS-VS

11.8 x 6 mm

$ 35.50

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4.03ctw Red Pyrope Garnet, Marquise, VVS-VS

12 x 5.9 mm

$ 35.32

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3.98ctw Red Pyrope Garnet, Marquise, VVS-VS

12 x 6 mm

$ 43.73

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3.49ctw Red Pyrope Garnet, Marquise, VVS-VS

12 x 6.2 mm

$ 34.52

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3.12ctw Red Pyrope Garnet, Marquise, VVS-VS

11.8 x 5.9 mm

$ 34.28

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4.68ctw Blue Topaz, Marquise, VVS

12.1 x 6.1 mm

$ 25.64

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3.64ctw Red Pyrope Garnet, Marquise, VVS-VS

12 x 6 mm

$ 40.00

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3.96ctw Red Pyrope Garnet, Marquise, VVS

12 x 5.8 mm

$ 21.70

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Why Buy Marquise Shape 12x6 Mm Gems from GemSelect?

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9 star ratings

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

It was fine

Posted By Na in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

Posted By Kelly in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Found a rock that met my need. Bought it!

Posted By Skot in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I loved the selection of gemstones you have a to z

Posted By James in May, 2026
Source: Bizrate
Enlarged Gemstone Image