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Home Calibrated Gemstones Marquise Shape 12x6 mm Gems

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
Cabochons
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4.75ctw Blue Topaz, Marquise, VVS-VS

12.1 x 6 mm

$ 26.03

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1.55ct Violet Amethyst, Marquise, VS

12 x 5.9 mm

$ 11.89

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2.34ct Blue Topaz, Marquise, VVS-VS

12 x 6.1 mm

$ 12.82

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3.55ctw Red Pyrope Garnet, Marquise, VVS-VS

11.9 x 6 mm

$ 39.01

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2.13ct Red Almandine Garnet, Marquise, VVS

12 x 6 mm (calibrated)

$ 79.56

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4.97ctw Red Pyrope Garnet, Marquise, VVS-VS

11.9 x 6 mm

$ 49.17

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1.43ct Violet Amethyst, Marquise, VS

12 x 6 mm

$ 10.96

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1.39ct Violet Amethyst, Marquise, VS

12.1 x 5.8 mm

$ 9.69

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4.54ctw Red Pyrope Garnet, Marquise, VVS-VS

12.1 x 6.1 mm

$ 39.79

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3.89ctw Red Pyrope Garnet, Marquise, VVS-VS

12.1 x 6 mm

$ 34.10

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3.83ctw Red Pyrope Garnet, Marquise, VS

12.1 x 6 mm

$ 33.57

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1.29ct Multicolor Opal, Marquise, Translucent

12.1 x 6 mm

$ 49.47

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1.45ct Violet Amethyst, Marquise, VS

12 x 6 mm

$ 11.12

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2.07ct Violet Amethyst, Marquise, VS

12.1 x 5.9 mm

$ 15.88

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2.52ct Multicolor Labradorite, Marquise, Translucent

12 x 6 mm (calibrated)

$ 5.57

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4.70ctw Multicolor Labradorite, Marquise, Translucent

12 x 6 mm (calibrated)

$ 10.39

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2.56ct Blue Topaz, Marquise, VVS

12.1 x 6.1 mm

$ 14.03

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2.09ct Red Almandine Garnet, Marquise, VVS-VS

12 x 6 mm (calibrated)

$ 78.06

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4.86ctw Blue Topaz, Marquise, VVS

12 x 6.1 mm

$ 26.63

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2.24ct Multicolor Labradorite, Marquise, Translucent

12 x 6 mm (calibrated)

$ 4.95

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3.91ctw Red Pyrope Garnet, Marquise, VVS-VS

11.8 x 6 mm

$ 34.27

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2.29ct Brown Tiger'S Eye, Marquise, Opaque

12 x 6 mm (calibrated)

$ 2.97

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1.97ct Violet Amethyst, Marquise, VS

11.9 x 6 mm

$ 15.11

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2.51ct Multicolor Labradorite, Marquise, Translucent

12 x 6 mm (calibrated)

$ 5.54

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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 -> 8 star ratings

It was fine

Posted By Na in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection prices are reasonable!

Posted By ToRa62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

My whole experience is great.

Posted By Ghs in November, 2025
Source: Bizrate
Enlarged Gemstone Image