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Buy Octagon Shape 30x22 mm Gems

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82.82ct Natural Deep Grape Violet Druzy Amethyst, Fancy, Opaque, Photo A
Druzy Amethyst Product Video (392035)

82.82ct Natural Deep Grape Violet Druzy Amethyst, Fancy, Opaque

Druzy Amethyst

82.82ct1 pc
$ 45.50
33.8 x 29.9 mm
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20.00ct Natural Medium Green Amazonite, Fancy, Translucent, Photo A

20.00ct Natural Medium Green Amazonite, Fancy, Translucent

Amazonite

20.00ct1 pc
$ 13.20
33.6 x 8.7 mm
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7.05ct Natural Earthy Yellow Rutile Quartz, Pear Shape, Transparent, Photo A

7.05ct Natural Earthy Yellow Rutile Quartz, Pear Shape, Transparent

Rutile Quartz

7.05ct1 pc
$ 23.08
14.9 x 11 mm
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1.53ctw Natural White Zircon, Round, VS, Photo A

1.53ctw Natural White Zircon, Round, VS

Zircon

1.53ct total2 pcs
$ 48.47
5 mm (calibrated)
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2.07ct Natural Rapberry Red Rhodolite Garnet, Oval, VVS-VS, Photo A
Rhodolite Garnet Product Video (735191)

2.07ct Natural Rapberry Red Rhodolite Garnet, Oval, VVS-VS

Rhodolite Garnet

2.07ct1 pc
$ 99.36
8.5 x 7 mm
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0.54ct Natural Orange-Gold Sapphire, Cushion, VVS, Photo A

0.54ct Natural Orange-Gold Sapphire, Cushion, VVS

Sapphire

0.54ct1 pc
$ 35.35
4.6 x 4.6 mm
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1.13ct Natural Clear White Sillimanite Cat's Eye, Oval, Transparent, Photo A

1.13ct Natural Clear White Sillimanite Cat's Eye, Oval, Transparent

Sillimanite Cat's Eye

1.13ct1 pc
$ 3.54
7.8 x 5.3 mm
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0.02ct Natural Black Diamond, Round, Opaque, Photo A

0.02ct Natural Black Diamond, Round, Opaque

Diamond

0.02ct1 pc
$ 19.20
2 mm (calibrated)
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0.37ct Natural Medium Golden Citrine, Heart, VS, Photo A

0.37ct Natural Medium Golden Citrine, Heart, VS

Citrine

0.37ct1 pc
$ 3.11
5 x 5 mm (calibrated)
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21.22ct Natural Bi-color Ametrine, Oval, VVS, Photo A
Ametrine Product Video (676454)

21.22ct Natural Bi-color Ametrine, Oval, VVS

Ametrine

21.22ct1 pc
$ 229.18
20.4 x 16.2 mm
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0.62ct Natural Medium Pink Spinel, Cushion, VS, Photo A

0.62ct Natural Medium Pink Spinel, Cushion, VS

Spinel

0.62ct1 pc
$ 22.26
6.5 x 4.5 mm
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13.92ct Natural Sangria Red Strawberry Quartz, Oval, Translucent, Photo A

13.92ct Natural Sangria Red Strawberry Quartz, Oval, Translucent

Strawberry Quartz

13.92ct1 pc
$ 128.62
17.4 x 13.9 mm
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39.05ctw Natural Multicolor Jasper, Oval, Opaque, Photo A

39.05ctw Natural Multicolor Jasper, Oval, Opaque

Jasper

39.05ct total2 pcs
$ 77.33
33.5 x 13.6 mm
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4.00ctw Natural Gold Citrine, Heart, VVS-VS, Photo A

4.00ctw Natural Gold Citrine, Heart, VVS-VS

Citrine

4.00ct total4 pcs
$ 36.96
6.7 x 6.6 mm
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0.97ct Natural Warm Grey Sillimanite Cat's Eye, Oval, Translucent, Photo A

0.97ct Natural Warm Grey Sillimanite Cat's Eye, Oval, Translucent

Sillimanite Cat's Eye

0.97ct1 pc
$ 3.49
6.4 x 4.2 mm
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0.86ct Natural Lively Green Peridot, Oval, VS, Photo A

0.86ct Natural Lively Green Peridot, Oval, VS

Peridot

0.86ct1 pc
$ 14.45
7 x 5 mm (calibrated)
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4.20ctw Natural Clear White Topaz, Square, VS, Photo A

4.20ctw Natural Clear White Topaz, Square, VS

Topaz

4.20ct total10 pcs
$ 38.81
4 x 4 mm (calibrated)
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5.89ct Natural Grayish Magenta Star Ruby, Oval, Opaque, Photo A

5.89ct Natural Grayish Magenta Star Ruby, Oval, Opaque

Star Ruby

5.89ct1 pc
$ 93.30
12 x 10 mm (calibrated)
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8.44ct Natural Dark Green Blue Turquoise, Pear Shape, Opaque, Photo A

8.44ct Natural Dark Green Blue Turquoise, Pear Shape, Opaque

Turquoise

8.44ct1 pc
$ 40.51
21.5 x 12.4 mm
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1.39ct Natural Light Yellow Color-Change Diaspore, Baguette, VVS, Photo A

1.39ct Natural Light Yellow Color-Change Diaspore, Baguette, VVS

Color-Change Diaspore

1.39ct1 pc
$ 87.24
8.8 x 4.9 mm
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7.42ctw Natural Deep Golden Orange Citrine, Oval, VS, Photo A

7.42ctw Natural Deep Golden Orange Citrine, Oval, VS

Citrine

7.42ct total2 pcs
$ 48.97
12 x 10 mm (calibrated)
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2.30ct Natural Deep Orange Moonstone, Cushion, Translucent, Photo A

2.30ct Natural Deep Orange Moonstone, Cushion, Translucent

Moonstone

2.30ct1 pc
$ 5.52
9 x 7 mm (calibrated)
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1.15ctw Natural London Blue Topaz, Oval, VS, Photo A

1.15ctw Natural London Blue Topaz, Oval, VS

Topaz

1.15ct total2 pcs
$ 11.04
6 x 4 mm (calibrated)
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0.94ctw Natural Light Green Peridot, Pear Shape, VVS-VS, Photo A

0.94ctw Natural Light Green Peridot, Pear Shape, VVS-VS

Peridot

0.94ct total2 pcs
$ 9.92
6 x 4 mm (calibrated)
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1.07ct Natural Medium Dark-Orange Zircon, Oval, VVS, Photo A

1.07ct Natural Medium Dark-Orange Zircon, Oval, VVS

Zircon

1.07ct1 pc
$ 19.26
6 x 4.9 mm
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2.39ctw Natural Dark Red Pyrope Garnet, Marquise, VVS-VS, Photo A

2.39ctw Natural Dark Red Pyrope Garnet, Marquise, VVS-VS

Pyrope Garnet

2.39ct total2 pcs
$ 25.24
9.9 x 5 mm
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3.46ct Natural Dark Orange-Gold Citrine, Pear Shape, VVS-VS, Photo A

3.46ct Natural Dark Orange-Gold Citrine, Pear Shape, VVS-VS

Citrine

3.46ct1 pc
$ 25.90
12 x 10 mm (calibrated)
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1.72ct Natural Medium Gold Citrine, Oval, VVS-VS, Photo A

1.72ct Natural Medium Gold Citrine, Oval, VVS-VS

Citrine

1.72ct1 pc
$ 11.35
9 x 7 mm (calibrated)
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1.93ct Natural Bright Orange Agate, Oval, Translucent, Photo A

1.93ct Natural Bright Orange Agate, Oval, Translucent

Agate

1.93ct1 pc
$ 5.10
9 x 7 mm (calibrated)
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0.34ct Natural Golden Citrine, Heart, VS, Photo A

0.34ct Natural Golden Citrine, Heart, VS

Citrine

0.34ct1 pc
$ 2.86
5 x 5 mm (calibrated)
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3.58ct Natural Medium-Dark Golden Citrine, Cushion, VVS-VS, Photo A

3.58ct Natural Medium-Dark Golden Citrine, Cushion, VVS-VS

Citrine

3.58ct1 pc
$ 33.08
13 x 9 mm (calibrated)
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10.65ct Natural Multicolor Boulder Opal, Fancy, Opaque, Photo A

10.65ct Natural Multicolor Boulder Opal, Fancy, Opaque

Boulder Opal

10.65ct1 pc
$ 63.90
20.2 x 13.2 mm
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GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoyed shopping.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate

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 30 x 22 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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Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoyed shopping.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate
Enlarged Gemstone Image