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: Octagon Shape 8x6 mm Gems
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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (126): Octagon Shape 8x6 mm Gems Clear All
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ID: 3241266 pcs
thumb image of 8.8ct Octagon Step Cut Yellow Golden Citrine (ID: 324126)
8.75 ct Citrine
8.1 x 6.1 mm
$ 47.78
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ID: 3813972 pcs
thumb image of 3.8ct Octagon Facet Swiss Blue Topaz (ID: 381397)
3.80 ct Topaz
8.2 x 6.1 mm
$ 26.60
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ID: 4472401 pcs
thumb image of 1ct Octagon Step Cut Yellow Golden Citrine (ID: 447240)
0.98 ct Citrine
8 x 5.9 mm
$ 4.90
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ID: 4313901 pcs
thumb image of 2.3ct Octagon Facet Cinnamon Orange Hessonite Garnet (ID: 431390)
2.25 ct Hessonite Garnet
8 x 6.1 mm
$ 40.50
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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: 4693364 pcs
thumb image of 5.9ct Octagon Step Cut Yellow Golden Citrine (ID: 469336)
5.91 ct Citrine
8.1 x 6.1 mm
$ 35.46
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ID: 3723684 pcs
thumb image of 7.9ct Octagon Facet Swiss Blue Topaz (ID: 372368)
7.89 ct Topaz
8.1 x 6 mm
$ 55.23
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ID: 3941802 pcs
thumb image of 3.5ct Octagon Facet Cinnamon Orange Hessonite Garnet (ID: 394180)
3.47 ct Hessonite Garnet
8 x 6.1 mm
$ 48.41
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ID: 4747561 pcs
thumb image of 1ct Octagon Step Cut Violet Blue Iolite (ID: 474756)
1.04 ct Iolite
8 x 5.8 mm
$ 31.20
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ID: 3238265 pcs
thumb image of 7.8ct Octagon Facet Yellow Golden Citrine (ID: 323826)
7.81 ct Citrine
8.1 x 6.1 mm
$ 45.11
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ID: 3238245 pcs
thumb image of 7.3ct Octagon Facet Yellow Golden Citrine (ID: 323824)
7.26 ct Citrine
8 x 6 mm
$ 41.93
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ID: 3723774 pcs
thumb image of 7.8ct Octagon Facet Swiss Blue Topaz (ID: 372377)
7.76 ct Topaz
8 x 6 mm
$ 54.32
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ID: 3723794 pcs
thumb image of 8.7ct Octagon Facet Swiss Blue Topaz (ID: 372379)
8.72 ct Topaz
8.1 x 6.1 mm
$ 61.04
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ID: 4693334 pcs
thumb image of 4.4ct Octagon Step Cut Yellow Golden Citrine (ID: 469333)
4.38 ct Citrine
7.9 x 5.9 mm
$ 26.28
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ID: 3722714 pcs
thumb image of 8.6ct Octagon Facet Swiss Blue Topaz (ID: 372271)
8.62 ct Topaz
8.1 x 6.1 mm
$ 60.34
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ID: 4472701 pcs
thumb image of 1.3ct Octagon Step Cut Yellow Golden Citrine (ID: 447270)
1.26 ct Citrine
7.9 x 5.9 mm
$ 6.30
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ID: 3723054 pcs
thumb image of 8.4ct Octagon Facet Swiss Blue Topaz (ID: 372305)
8.37 ct Topaz
8.1 x 6 mm
$ 58.59
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ID: 3723294 pcs
thumb image of 7.2ct Octagon Facet Swiss Blue Topaz (ID: 372329)
7.23 ct Topaz
8.1 x 6 mm
$ 50.61
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ID: 3722725 pcs
thumb image of 9.1ct Octagon Facet Swiss Blue Topaz (ID: 372272)
9.12 ct Topaz
8 x 6 mm
$ 63.84
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ID: 3722734 pcs
thumb image of 8ct Octagon Facet Swiss Blue Topaz (ID: 372273)
7.95 ct Topaz
8.1 x 6.1 mm
$ 55.65
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ID: 3815124 pcs
thumb image of 8.2ct Octagon Facet Swiss Blue Topaz (ID: 381512)
8.18 ct Topaz
8 x 6.1 mm
$ 57.26
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Octagon Shape 8x6 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 Octagon Shape / Emerald-cut, faceted and cabochon gems available now in 8 x 6 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. 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.

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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