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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (116): Octagon Shape 9x7 mm Gems Clear All
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2.4ct Octagon Step Cut Green Tourmaline Gem (ID: 463553)
2.36 ct Tourmaline
8.7 x 6.7 mm
$ 236.00
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2.3ct Octagon Step Cut Green Emerald Gem (ID: 459479)
2.28 ct Emerald
8.8 x 6.9 mm
$ 4,104.00
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2.8ct Octagon Step Cut Green Tourmaline Gem (ID: 463555)
2.75 ct Tourmaline
9 x 7.1 mm
$ 246.00
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2.6ct Octagon Step Cut Blue Kyanite Gem (ID: 470967)
2.63 ct Kyanite
9 x 7 mm
$ 136.73
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3.4ct Octagon Step Cut Red Pyrope Garnet Gem (ID: 462129)
3.44 ct Pyrope Garnet
9.2 x 7 mm
$ 41.28
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2.6ct Octagon Facet Swiss Blue Topaz Gem (ID: 419804)
2.63 ct (total 5.25ctw) Topaz
9.1 x 7 mm
$ 36.75
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3.2ct Octagon Step Cut Bi-Color Ametrine Gem (ID: 461830)
3.18 ct Ametrine
9.2 x 7.1 mm
$ 22.26
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3.1ct Octagon Step Cut Red Pyrope Garnet Gem (ID: 462125)
3.12 ct Pyrope Garnet
9.1 x 7.1 mm
$ 37.44
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2.6ct Octagon Facet Light Blue Aquamarine Gem (ID: 408913)
2.60 ct Aquamarine
9.2 x 6.9 mm
$ 214.68
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2.5ct Octagon Facet Light Blue Aquamarine Gem (ID: 408829)
2.46 ct Aquamarine
8.7 x 7 mm
$ 203.12
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2.8ct Octagon Facet Swiss Blue Topaz Gem (ID: 405286)
2.84 ct Topaz
9 x 7 mm
$ 19.74
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2.7ct Octagon Step Cut Green Agate Gem (ID: 478288)
2.66 ct Agate
9.1 x 7.2 mm
$ 5.32
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3.3ct Octagon Step Cut Red Pyrope Garnet Gem (ID: 462121)
3.33 ct Pyrope Garnet
9 x 7.1 mm
$ 39.96
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3.1ct Octagon Step Cut Red Pyrope Garnet Gem (ID: 462179)
3.14 ct Pyrope Garnet
9.1 x 7 mm
$ 37.68
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3.3ct Octagon Step Cut Red Pyrope Garnet Gem (ID: 462128)
3.30 ct Pyrope Garnet
9 x 7 mm
$ 39.60
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2.2ct Octagon Facet Swiss Blue Topaz Gem (ID: 405792)
2.24 ct (total 4.47ctw) Topaz
8.8 x 7 mm
$ 31.16
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3.1ct Octagon Facet Swiss Blue Topaz Gem (ID: 405678)
3.08 ct (total 6.15ctw) Topaz
9.1 x 7 mm
$ 42.87
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2.3ct Octagon Facet Swiss Blue Topaz Gem (ID: 419803)
2.27 ct (total 4.53ctw) Topaz
9 x 6.9 mm
$ 31.71
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2.2ct Octagon Step Cut Violet Amethyst Gem (ID: 457878)
2.22 ct Amethyst
9.1 x 7.1 mm
$ 15.54
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2.9ct Octagon Facet Swiss Blue Topaz Gem (ID: 419807)
2.92 ct (total 5.83ctw) Topaz
9 x 6.9 mm
$ 40.81
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2.9ct Octagon Facet Swiss Blue Topaz Gem (ID: 419808)
2.90 ct (total 5.79ctw) Topaz
9 x 7 mm
$ 40.53
Item in Stock
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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.

Certified Customer Reviews
Overall Rating -> 10 star ratings
The site had so many different stones and they were very affordably priced
Posted By Manimal in December, 2018
Source: Bizrate
Overall Rating -> 9 star ratings
Good stones and easy to use website
Posted By Wilsondesigns in December, 2018
Source: Bizrate
Overall Rating -> 9 star ratings
All is good
Posted By T in December, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
nice collection of jewels at a fair price
Posted By Bob in December, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
The website is easy to use, and there is a wonderful selection of gem stones to choose from. The prices are reasonable.
Posted By LoveGems in December, 2018
Source: Bizrate
Overall Rating -> 9 star ratings
simple, clear, well organized site
Posted By Lleb in December, 2018
Source: Bizrate
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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