Calibrated 14 x 12 mm Octagon Shape Gemstones from GemSelect

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.

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was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

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Gemstones A-Z

Buy Octagon Shape 14x12 mm Gems

0.97 ct Oval Cut Peridot, 7.5 x 5.7 mm From China

1.22 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 8.2 x 5.6 mm

26.72 ct Trillion Obsidian, 27.3 x 21.9 mm From Mexico

16.93 ct Oval Quartz With Marcasite, 20.7 x 14.7 mm From Brazil

1.06 ct Loose Pink Tourmaline, 6.1 mm Round Cabochon From Mozambique

24.55 carat Round Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 20.2 mm

3.41 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

2.54 ct Yellow Sillimanite, 7.8 x 5.7 mm Oval Cut From Sri Lanka

0.74 ct Yellow Beryl, 6.9 x 5.1 mm Oval Cut From Madagascar

3.3 ct Asscher Cut Smoky Quartz, 9.5 x 9.4 mm From Brazil

2.75 ct Green Sphene, 8.9 x 7.6 mm Oval Cut From Sri Lanka

5.59 ct Carved Prehnite, 13.9 x 9.9 mm From South Africa

0.61 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 8.1 x 3.7 mm

1 ct Yellow Beryl, 6.9 mm Round Cut From Madagascar

8.9 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 18.4 x 11.5 mm

3.26 ct Loose Oval Concave Cut Mystic Quartz, 9.1 x 7.1 mm From Brazil

5.66 ct Oval Quartz Cat's Eye, 11.3 x 9.8 mm From Sri Lanka

1.45 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.9 x 5.1 mm

0.8 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.4 x 4.7 mm

1.89 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.9 x 7.1 mm

8.38 ct Yellow Quartz, 8.7 x 8.5 mm Carved From Brazil

15.24 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gems, 14 x 10 mm

2.03 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 20.5 x 3.5 mm

2.37 ct Octagon Cut Peridot, 5.8 x 4 mm From China

1.37 ct Blue Apatite, 5 x 4.3 mm Oval Cut From Madagascar

1.09 ct Cushion Cut Color-Change Diaspore, 7 x 5.1 mm From Turkey

0.5 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.2 x 4 mm

6.94 ct Princess Cut Rose Quartz, 11.4 x 11.4 mm From South Africa

1.11 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gems, 7.2 x 5.3 mm

8.15 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6 x 4.1 mm

1.62 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.5 mm

4.03 ct Fancy Fire Agate, 11.1 x 8.6 mm From Mexico

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