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You Selected (3678): Octagon / Emerald Cut Gems Clear All
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ID: 2600311 pcs
thumb image of 0.7ct Octagon / Scissor Cut Golden Brown to Orange Color-Change Garnet (ID: 260031)
0.68 ct Color-Change Garnet
7.1 x 3.6 mm
$ 64.26
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ID: 4353211 pcs
thumb image of 4.4ct Octagon Facet Bi-Color Ametrine (ID: 435321)
4.44 ct Ametrine
8.5 x 8.2 mm
$ 22.20
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ID: 3988364 pcs
thumb image of 6ct Octagon Facet Cinnamon Orange Hessonite Garnet (ID: 398836)
6.03 ct Hessonite Garnet
8 x 6.1 mm
$ 120.60
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ID: 3658932 pcs
thumb image of 6ct Octagon Facet Swiss Blue Topaz (ID: 365893)
5.97 ct Topaz
8.1 x 8 mm
$ 36.72
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ID: 4416061 pcs
thumb image of 8.4ct Octagon Facet Bi-Color Ametrine (ID: 441606)
8.37 ct Ametrine
12.1 x 10.1 mm
$ 41.85
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ID: 4082581 pcs
thumb image of 5.5ct Octagon / Scissor Cut Brown Smoky Quartz (ID: 408258)
5.46 ct Smoky Quartz
10.6 x 10.6 mm
$ 9.77
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ID: 3955001 pcs
thumb image of 12.5ct Asscher Cut White Quartz (ID: 395500)
12.46 ct Quartz
14.8 x 14.8 mm
$ 19.81
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ID: 4418331 pcs
thumb image of 5.1ct Octagon Facet Bi-Color Ametrine (ID: 441833)
5.11 ct Ametrine
12.7 x 9.4 mm
$ 25.55
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ID: 3299496 pcs
thumb image of 1.9ct Octagon / Scissor Cut Multicolor Sapphire (ID: 329949)
1.93 ct Sapphire
4.1 x 3.1 mm
$ 67.55
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ID: 4228921 pcs
thumb image of 0.9ct Octagon Facet Green/Pink Color-Change Diaspore (ID: 422892)
0.91 ct Color-Change Diaspore
8.3 x 3.7 mm
$ 26.44
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ID: 4313861 pcs
thumb image of 2.2ct Octagon Facet Cinnamon Orange Hessonite Garnet (ID: 431386)
2.18 ct Hessonite Garnet
7.7 x 5.9 mm
$ 39.24
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ID: 4472081 pcs
thumb image of 1.7ct Octagon Step Cut Yellow Golden Citrine (ID: 447208)
1.66 ct Citrine
7.8 x 6 mm
$ 8.30
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ID: 3946811 pcs
thumb image of 13.6ct Asscher Cut White Quartz (ID: 394681)
13.61 ct Quartz
15.3 x 15.2 mm
$ 40.83
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ID: 43501315 pcs
thumb image of 1.8ct Octagon Facet Pink Sapphire (ID: 435013)
1.83 ct Sapphire
2.6 x 2.6 mm
$ 146.40
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ID: 4340941 pcs
thumb image of 12.7ct Octagon Facet Bi-Color Ametrine (ID: 434094)
12.66 ct Ametrine
21.4 x 9.9 mm
$ 69.12
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ID: 4134201 pcs
thumb image of 5.1ct Octagon Facet Brown Smoky Quartz (ID: 413420)
5.10 ct Smoky Quartz
10.4 x 10.3 mm
$ 12.75
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ID: 3970151 pcs
thumb image of 1.1ct Octagon Facet Green/Pink Color-Change Diaspore (ID: 397015)
1.12 ct Color-Change Diaspore
7.5 x 4.4 mm
$ 53.49
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ID: 3495761 pcs
thumb image of 1.4ct Octagon Facet Green Tourmaline (ID: 349576)
1.36 ct Tourmaline
14.9 x 3.6 mm
$ 29.92
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ID: 4177731 pcs
thumb image of 6.6ct Asscher Cut Brown Smoky Quartz (ID: 417773)
6.64 ct Smoky Quartz
12.6 x 9.8 mm
$ 11.95
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ID: 4424931 pcs
thumb image of 3.3ct Octagon Facet Bi-Color Ametrine (ID: 442493)
3.25 ct Ametrine
9.4 x 7.5 mm
$ 16.25
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ID: 4200031 pcs
thumb image of 2.7ct Octagon Facet Swiss Blue Topaz (ID: 420003)
2.67 ct Topaz
8.7 x 6.7 mm
$ 18.69
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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