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You Selected (6062): Octagon / Emerald Cut Gems Clear All
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ID: 4414071 pcs
thumb image of 6.7ct Octagon Facet Bi-Color Ametrine (ID: 441407)
6.72 ct Ametrine
11.2 x 10.4 mm
$ 33.60
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ID: 4080781 pcs
thumb image of 8.9ct Octagon / Scissor Cut Brown Smoky Quartz (ID: 408078)
8.86 ct Smoky Quartz
12.4 x 12.4 mm
$ 15.86
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ID: 3836381 pcs
thumb image of 1.3ct Octagon Facet Green Tourmaline (ID: 383638)
1.26 ct Tourmaline
14.8 x 3.1 mm
$ 24.07
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ID: 4519381 pcs
thumb image of 20ct Octagon Step Cut Lemon Quartz (ID: 451938)
20.02 ct Quartz
15.8 x 14.9 mm
$ 30.03
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ID: 4088681 pcs
thumb image of 2.3ct Octagon Facet Light Blue Aquamarine (ID: 408868)
2.28 ct Aquamarine
8.9 x 7.4 mm
$ 188.26
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ID: 4376932 pcs
thumb image of 2.3ct Octagon Facet Green Tourmaline (ID: 437693)
2.33 ct Tourmaline
17.7 x 2.9 mm
$ 58.25
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ID: 3961222 pcs
thumb image of 7.5ct Asscher Cut Golden Green Apatite (ID: 396122)
7.45 ct Apatite
8.4 x 8.3 mm
$ 276.77
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ID: 3950291 pcs
thumb image of 3.3ct Asscher Cut Pink Rose Quartz (ID: 395029)
3.28 ct Rose Quartz
9.2 x 8.9 mm
$ 45.30
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ID: 4416501 pcs
thumb image of 2.3ct Octagon Facet Bi-Color Ametrine (ID: 441650)
2.30 ct Ametrine
8.7 x 7.9 mm
$ 11.50
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ID: 4312012 pcs
thumb image of 3ct Octagon Facet Cinnamon Orange Hessonite Garnet (ID: 431201)
3.00 ct Hessonite Garnet
6.1 x 6.1 mm
$ 54.00
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ID: 3958652 pcs
thumb image of 14.2ct Asscher Cut White Quartz (ID: 395865)
14.22 ct Quartz
11.9 x 11.9 mm
$ 22.61
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ID: 3944882 pcs
thumb image of 3.7ct Asscher Cut Pink Rose Quartz (ID: 394488)
3.73 ct Rose Quartz
8 x 8 mm
$ 18.65
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ID: 4006891 pcs
thumb image of 5.9ct Octagon Facet Bi-Color Ametrine (ID: 400689)
5.92 ct Ametrine
11 x 10.3 mm
$ 41.44
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ID: 4581641 pcs
thumb image of 37ct Octagon Step Cut Bi-color Ametrine (ID: 458164)
36.97 ct Ametrine
18.9 x 18.5 mm
$ 293.54
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ID: 2642651 pcs
thumb image of 40.6ct Octagon Facet Light Blue Aquamarine (ID: 264265)
40.56 ct Aquamarine
22 x 17.5 mm
$ 12995.00
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ID: 4415871 pcs
thumb image of 2.3ct Octagon Facet Bi-Color Ametrine (ID: 441587)
2.31 ct Ametrine
8.2 x 7.8 mm
$ 11.55
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ID: 4569121 pcs
thumb image of 0.7ct Octagon Step Cut Multicolor Mystic Topaz (ID: 456912)
0.70 ct Mystic Topaz
6 x 3.9 mm
$ 3.50
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ID: 4161321 pcs
thumb image of 1.5ct Octagon Facet Green Tourmaline (ID: 416132)
1.46 ct Tourmaline
13 x 3.5 mm
$ 35.04
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ID: 4426271 pcs
thumb image of 2.4ct Octagon Facet Bi-Color Ametrine (ID: 442627)
2.35 ct Ametrine
8.2 x 7.9 mm
$ 11.75
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ID: 3453581 pcs
thumb image of 10.9ct Octagon Facet Green Emerald (ID: 345358)
10.88 ct Emerald
14.7 x 12.7 mm
$ 10879.99
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ID: 3945612 pcs
thumb image of 3.8ct Asscher Cut Pink Rose Quartz (ID: 394561)
3.77 ct Rose Quartz
8 x 8 mm
$ 18.85
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Item in Stock
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Octagon / Emerald Cut Gems
The octagon or emerald-cut is a shape that was developed to maximize the color of emerald gemstones. Therefore, if you are looking for a gem that shows pure, unadulterated color at its best, emerald cut gems are the right choice. The octagon-cut showcases the color of a gemstone.

Octagonal colored gemstones from GemSelect include large stones, matched pairs and lots. Among the choices are both precious and semi-precious octagonal gems, for example, bicolored ametrine, tourmaline, emerald, amethyst, smoky quartz, diamond, topaz, tanzanite and tsavorite garnet. There are emerald-cut gemstones of every color, size, shape and cutting style available. Some emerald-cut gems are square and others are long and rectangular.

To find the octagonal gemstones that you seek, filter the results further by using the left-hand menu. You can buy emerald-cut stones by gem type or color. By using the top menu, you can search by carat weight, size, price and other factors, to enable you to find the exact emerald-cut gems that you are looking for. All items are in stock and ready to be shipped.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart