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Buy Octagon Shape 10x8 mm Gems

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Octagon Shape 10x8 mm Gems Weight Octagon Shape 10x8 mm Gems Size Octagon Shape 10x8 mm Gems Clarity Octagon Shape 10x8 mm Gems Price Octagon Shape 10x8 mm Gems Origin
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Octagon Shape 10x8 mm Gems Single
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1.81 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 5.2 mm, Photo A

1.81 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 5.2 mm

Topaz

1.81ct total2 pcs
$ 12.84
7.2 x 5.2 mm
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2 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 23.2 x 3.5 mm, Photo A

2 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 23.2 x 3.5 mm

Tourmaline

2.00ct1 pc
$ 55.00
23.2 x 3.5 mm
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4.38 ct Orange Moonstone, 7.2 x 7.2 mm Square Cut From India, Photo A

4.38 ct Orange Moonstone, 7.2 x 7.2 mm Square Cut From India

Moonstone

4.38ct total2 pcs
$ 8.80
7.2 x 7.2 mm
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3.06 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 7.1 x 5.1 mm, Photo A

3.06 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 7.1 x 5.1 mm

Pyrope Garnet

3.06ct total4 pcs
$ 23.56
7.1 x 5.1 mm
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1.45 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 5 mm, Photo A

1.45 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 5 mm

Pyrope Garnet

1.45ct total2 pcs
$ 11.17
5 x 5 mm
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1.45 carat Pink Malaya Garnet, Round loose Malaya Garnet from Tanzania, Natural Untreated Gem, 6.4 mm, Photo A

1.45 carat Pink Malaya Garnet, Round loose Malaya Garnet from Tanzania, Natural Untreated Gem, 6.4 mm

Malaya Garnet

1.45ct1 pc
$ 67.79
6.4 mm
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0.67 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.2 x 5 mm, Photo A

0.67 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.2 x 5 mm

Emerald

0.67ct1 pc
$ 67.00
6.2 x 5 mm
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3.01 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5 mm, Photo A

3.01 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5 mm

Topaz

3.01ct total4 pcs
$ 23.18
7 x 5 mm
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8.83 ct Octagon Cut Smoky Quartz, 12.4 x 12.4 mm From Brazil, Photo A

8.83 ct Octagon Cut Smoky Quartz, 12.4 x 12.4 mm From Brazil

Smoky Quartz

8.83ct1 pc
$ 17.39
12.4 x 12.4 mm
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3.45 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gems, 7.2 x 7.2 mm, Photo A

3.45 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gems, 7.2 x 7.2 mm

Citrine

3.45ct total2 pcs
$ 24.06
7.2 x 7.2 mm
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1.84 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 8 x 7.9 mm, Photo A

1.84 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 8 x 7.9 mm

Pyrope Garnet

1.84ct1 pc
$ 47.84
8 x 7.9 mm
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0.87 ct Oval Cut Peridot, 7 x 5 mm From China, Photo A

0.87 ct Oval Cut Peridot, 7 x 5 mm From China

Peridot

0.87ct1 pc
$ 7.83
7 x 5 mm
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1.71 carat Yellow Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 7 mm, Photo A

1.71 carat Yellow Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 7 mm

Zircon

1.71ct1 pc
$ 37.62
7 mm
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12.11 ct Oval Rainbow Moonstone, 19.4 x 10.7 mm From the United States, Photo A

12.11 ct Oval Rainbow Moonstone, 19.4 x 10.7 mm From the United States

Rainbow Moonstone

12.11ct1 pc
$ 12.11
19.4 x 10.7 mm
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4.04 ct Yellow Sillimanite, 6.1 x 4.2 mm Oval Cut From Sri Lanka, Photo A
Click for Product Video (411822)

4.04 ct Yellow Sillimanite, 6.1 x 4.2 mm Oval Cut From Sri Lanka

Sillimanite

4.04ct total6 pcs
$ 155.54
6.1 x 4.2 mm
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126.78 carat Swiss Blue Topaz, Heart loose Topaz from Brazil, Natural Gem, 30.3 x 30.1 mm, Photo A
Click for Product Video (694570)

126.78 carat Swiss Blue Topaz, Heart loose Topaz from Brazil, Natural Gem, 30.3 x 30.1 mm

Topaz

126.78ct1 pc
$ 633.90
30.3 x 30.1 mm
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7.66 ct Round Larimar, 12.5 mm From the Dominican Republic, Photo A

7.66 ct Round Larimar, 12.5 mm From the Dominican Republic

Larimar

7.66ct1 pc
$ 38.01
12.5 mm
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1.93 ct Yellow Beryl, 8.2 mm Round Cut From Brazil, Photo A

1.93 ct Yellow Beryl, 8.2 mm Round Cut From Brazil

Beryl

1.93ct1 pc
$ 42.46
8.2 mm
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1.74 ct Oval Cut Strawberry Quartz, 9 x 6.9 mm From Russia, Photo A

1.74 ct Oval Cut Strawberry Quartz, 9 x 6.9 mm From Russia

Strawberry Quartz

1.74ct1 pc
$ 13.49
9 x 6.9 mm
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1.96 ct Round Spectrolite, 6.2 mm From Finland, Photo A

1.96 ct Round Spectrolite, 6.2 mm From Finland

Spectrolite

1.96ct total2 pcs
$ 9.27
6.2 mm
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0.49 ct Loose Orange Sapphire, 5.1 x 4 mm Octagon Cut From Tanzania, Photo A

0.49 ct Loose Orange Sapphire, 5.1 x 4 mm Octagon Cut From Tanzania

Sapphire

0.49ct1 pc
$ 26.73
5.1 x 4 mm
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1.7 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.1 x 6.1 mm, Photo A

1.7 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.1 x 6.1 mm

Pyrope Garnet

1.70ct total2 pcs
$ 13.09
6.1 x 6.1 mm
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0.09 ct Blue Diamond, 2.2 mm Diamond Cut From India, Photo A

0.09 ct Blue Diamond, 2.2 mm Diamond Cut From India

Diamond

0.09ct total2 pcs
$ 90.00
2.2 mm
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2.33 ct Oval Strawberry Quartz, 9.1 x 7.3 mm From Russia, Photo A

2.33 ct Oval Strawberry Quartz, 9.1 x 7.3 mm From Russia

Strawberry Quartz

2.33ct1 pc
$ 11.65
9.1 x 7.3 mm
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1.04 carat Cushion Buff Top Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 5.2 x 5.1 mm, Photo A

1.04 carat Cushion Buff Top Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 5.2 x 5.1 mm

Amethyst

1.04ct total2 pcs
$ 7.28
5.2 x 5.1 mm
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1.83 ct Round Cut Strawberry Quartz, 7.9 mm From Russia, Photo A

1.83 ct Round Cut Strawberry Quartz, 7.9 mm From Russia

Strawberry Quartz

1.83ct1 pc
$ 14.09
7.9 mm
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1.56 ct Green Sphene, 7 x 6 mm Oval Cut From Sri Lanka, Photo A

1.56 ct Green Sphene, 7 x 6 mm Oval Cut From Sri Lanka

Sphene

1.56ct1 pc
$ 8.58
7 x 6 mm
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16.46 ct Green Jadeite, 20.7 x 16.8 mm Oval Cut From Myanmar, Photo A

16.46 ct Green Jadeite, 20.7 x 16.8 mm Oval Cut From Myanmar

Jadeite

16.46ct1 pc
$ 54.32
20.7 x 16.8 mm
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30.67 ct Octagon / Emerald Cut Lapis Lazuli, 25.4 x 15.1 mm From Afghanistan, Photo A

30.67 ct Octagon / Emerald Cut Lapis Lazuli, 25.4 x 15.1 mm From Afghanistan

Lapis Lazuli

30.67ct1 pc
$ 50.30
25.4 x 15.1 mm
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39.01 carat Pear Labradorite, loose Certified Labradorite from Madagascar, Natural Untreated Gem, 32.3 x 22.5 mm, Photo A

39.01 carat Pear Labradorite, loose Certified Labradorite from Madagascar, Natural Untreated Gem, 32.3 x 22.5 mm

Labradorite

39.01ct1 pc
$ 46.77
32.3 x 22.5 mm
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9.86 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 15.4 x 12.3 mm, Photo A

9.86 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 15.4 x 12.3 mm

Ruby

9.86ct1 pc
$ 260.30
15.4 x 12.3 mm
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3.63 ct Round Labradorite, 7.1 mm From Madagascar, Photo A

3.63 ct Round Labradorite, 7.1 mm From Madagascar

Labradorite

3.63ct total2 pcs
$ 8.86
7.1 mm
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Photos are of Actual Products for Sale

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 10 x 8 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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