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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (3): Octagon Shape 14x12 mm Gems Clear All
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Pink Kunzite Gem - 12.1ct Octagon / Scissor Cut (ID: 453540)

Octagon / Emerald Cut Pink Kunzite

12.1ct
13.5 x 12.2 mm
$ 242.00
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Yellow Golden Citrine Gem - 8.9ct Octagon Step Cut (ID: 459791)

Octagon / Emerald Cut Yellow Citrine

8.9ct
13.9 x 11.8 mm
$ 62.09
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Lemon Quartz Gem - 12.4ct Octagon Step Cut (ID: 473017)

Octagon / Emerald Cut Yellow Quartz

12.4ct
13.8 x 12.4 mm
$ 24.88
Item in Stock
Octagon Shape 14x12 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 14 x 12 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
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I was very happy on the quality of the gemstones I recieved from GemSelect, I will deffinetly buy again.
Posted By Mckeg in January, 2019
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Posted By Olive in January, 2019
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Great selection. Love the many learning features like articles and gem information. Prices competitive for natural stones. I do miss not having a selection of lab-made stones, CZ’s, etc, which are useful when price and cost are factors.
Posted By Dirk in January, 2019
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Website easy to navigate.
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I WOULD RECOMMEND GEM SELECT.
Posted By BO in January, 2019
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Overall Rating -> 10 star ratings
As Always never disappointed in any gemstone I purchase from this site. I have never had a problem. Thank-You Gemselect for offering such a comprehensive variety . I will continue to order from this site.
Posted By Brian in January, 2019
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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

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