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: Octagon Shape 9x7 mm Gems
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You Selected (205): Octagon Shape 9x7 mm Gems Clear All
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ID: 4621881 pcs
thumb image of 3.3ct Octagon Step Cut Red Pyrope Garnet (ID: 462188)
3.34 ct Pyrope Garnet
9.1 x 7.1 mm
$ 40.08
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ID: 3980102 pcs
thumb image of 4.2ct Octagon Facet Yellow Golden Citrine (ID: 398010)
4.24 ct Citrine
9.1 x 7.1 mm
$ 21.20
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ID: 4635091 pcs
thumb image of 3.3ct Octagon Step Cut Red Pyrope Garnet (ID: 463509)
3.27 ct Pyrope Garnet
9 x 7 mm
$ 32.83
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ID: 4621251 pcs
thumb image of 3.1ct Octagon Step Cut Red Pyrope Garnet (ID: 462125)
3.12 ct Pyrope Garnet
9.1 x 7.1 mm
$ 37.44
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ID: 4198432 pcs
thumb image of 5.3ct Octagon Facet Swiss Blue Topaz (ID: 419843)
5.33 ct Topaz
8.9 x 7 mm
$ 37.31
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ID: 4191972 pcs
thumb image of 5.8ct Octagon Facet Swiss Blue Topaz (ID: 419197)
5.81 ct Topaz
8.9 x 6.9 mm
$ 40.67
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ID: 4622321 pcs
thumb image of 3.1ct Octagon Step Cut Red Pyrope Garnet (ID: 462232)
3.12 ct Pyrope Garnet
9 x 6.9 mm
$ 37.44
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ID: 4621261 pcs
thumb image of 3.3ct Octagon Step Cut Red Pyrope Garnet (ID: 462126)
3.33 ct Pyrope Garnet
9.1 x 7.1 mm
$ 39.96
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ID: 4622101 pcs
thumb image of 2.8ct Octagon Step Cut Red Pyrope Garnet (ID: 462210)
2.75 ct Pyrope Garnet
9 x 6.9 mm
$ 33.00
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ID: 4413781 pcs
thumb image of 3.5ct Octagon Facet Bi-Color Ametrine (ID: 441378)
3.46 ct Ametrine
9.2 x 6.8 mm
$ 17.30
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ID: 4596741 pcs
thumb image of 3ct Octagon Step Cut Bi-Color Ametrine (ID: 459674)
2.95 ct Ametrine
8.9 x 6.8 mm
$ 17.70
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ID: 4635181 pcs
thumb image of 2.9ct Octagon Step Cut Red Pyrope Garnet (ID: 463518)
2.92 ct Pyrope Garnet
9.1 x 7 mm
$ 29.32
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ID: 4622111 pcs
thumb image of 2.7ct Octagon Step Cut Red Pyrope Garnet (ID: 462211)
2.74 ct Pyrope Garnet
9 x 7 mm
$ 32.88
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ID: 4621851 pcs
thumb image of 3.4ct Octagon Step Cut Red Pyrope Garnet (ID: 462185)
3.37 ct Pyrope Garnet
9 x 7 mm
$ 40.44
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ID: 4622351 pcs
thumb image of 3.5ct Octagon Step Cut Red Pyrope Garnet (ID: 462235)
3.46 ct Pyrope Garnet
9.1 x 7 mm
$ 41.52
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ID: 4635121 pcs
thumb image of 3ct Octagon Step Cut Red Pyrope Garnet (ID: 463512)
2.96 ct Pyrope Garnet
9 x 6.9 mm
$ 29.72
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ID: 3756982 pcs
thumb image of 3.7ct Octagon Facet Yellow Golden Citrine (ID: 375698)
3.67 ct Citrine
8.9 x 7 mm
$ 25.69
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ID: 4621811 pcs
thumb image of 3.7ct Octagon Step Cut Red Pyrope Garnet (ID: 462181)
3.73 ct Pyrope Garnet
9 x 7.1 mm
$ 44.76
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ID: 4200001 pcs
thumb image of 2.5ct Octagon Facet Swiss Blue Topaz (ID: 420000)
2.45 ct Topaz
8.9 x 6.8 mm
$ 17.15
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ID: 4200571 pcs
thumb image of 3.2ct Octagon Facet Swiss Blue Topaz (ID: 420057)
3.18 ct Topaz
9.1 x 7.1 mm
$ 22.26
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ID: 4621841 pcs
thumb image of 3.7ct Octagon Step Cut Red Pyrope Garnet (ID: 462184)
3.73 ct Pyrope Garnet
9 x 7 mm
$ 44.76
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Octagon Shape 9x7 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 9 x 7 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