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Buy Octagon Shape 30x22 mm Gems

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64.36ct Natural Intense Yellow Quartz, Oval, VVS, Photo A
Quartz Product Video (458174)

64.36ct Natural Intense Yellow Quartz, Oval, VVS

Quartz

64.36ct1 pc
$ 210.68
28.5 x 23.5 mm
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0.93ct Natural Light Red Ruby, Pear Shape, VS-SI, Photo A

0.93ct Natural Light Red Ruby, Pear Shape, VS-SI

Ruby

0.93ct1 pc
$ 61.38
6.7 x 4.9 mm
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0.41ct Natural Brownish Orange Sphalerite, Round, SI, Photo A

0.41ct Natural Brownish Orange Sphalerite, Round, SI

Sphalerite

0.41ct1 pc
$ 24.60
4.5 mm (calibrated)
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0.33ct Natural Deep Blue Kyanite, Round, VS-SI, Photo A

0.33ct Natural Deep Blue Kyanite, Round, VS-SI

Kyanite

0.33ct1 pc
$ 7.13
3.7 mm
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0.54ct Natural Brownish Yellow Sphalerite, Oval, SI-I1, Photo A

0.54ct Natural Brownish Yellow Sphalerite, Oval, SI-I1

Sphalerite

0.54ct1 pc
$ 32.40
5.1 x 4.3 mm
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0.64ct Natural Twilight Blue Sapphire, Round, VS, Photo A
Sapphire Product Video (449826)

0.64ct Natural Twilight Blue Sapphire, Round, VS

Sapphire

0.64ct1 pc
$ 458.99
5 mm (calibrated)
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1.81ctw Natural Multicolor Opal, Oval, Transparent, Photo A

1.81ctw Natural Multicolor Opal, Oval, Transparent

Opal

1.81ct total4 pcs
$ 95.57
7 x 5 mm (calibrated)
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22.63ct Natural Silver Gray Hematite, Baguette, Opaque, Photo A

22.63ct Natural Silver Gray Hematite, Baguette, Opaque

Hematite

22.63ct1 pc
$ 22.15
17.1 x 13.3 mm
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151.24ct Natural London Blue Topaz, Pear Shape, IF, Photo A
Topaz Product Video (724438)

151.24ct Natural London Blue Topaz, Pear Shape, IF

Topaz

151.24ct1 pc
$ 2,519.05
34.4 x 31.8 mm
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59.97ct Natural Multicolor Jasper, Oval, Opaque, Photo A

59.97ct Natural Multicolor Jasper, Oval, Opaque

Jasper

59.97ct1 pc
$ 41.74
44.5 x 26.6 mm
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10.46ctw Natural Multicolor Labradorite, Marquise, Translucent, Photo A

10.46ctw Natural Multicolor Labradorite, Marquise, Translucent

Labradorite

10.46ct total2 pcs
$ 27.86
16 x 8 mm (calibrated)
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0.20ct Natural Pinkish Red Ruby, Round, VS, Photo A

0.20ct Natural Pinkish Red Ruby, Round, VS

Ruby

0.20ct1 pc
$ 79.46
3.5 mm (calibrated)
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1.50ct Natural Medium Orange Sapphire, Oval, VS, Photo A

1.50ct Natural Medium Orange Sapphire, Oval, VS

Sapphire

1.50ct1 pc
$ 76.14
7.6 x 5.3 mm
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0.87ct Natural Reddish Orange Hessonite Garnet, Cushion, VS, Photo A

0.87ct Natural Reddish Orange Hessonite Garnet, Cushion, VS

Hessonite Garnet

0.87ct1 pc
$ 15.59
5.3 x 5.2 mm
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9.73ct Natural Multicolor Labradorite, Pear Shape, Translucent, Photo A

9.73ct Natural Multicolor Labradorite, Pear Shape, Translucent

Labradorite

9.73ct1 pc
$ 25.92
16 x 12 mm (calibrated)
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1.83ct Natural Medium-Dark Orange Hessonite Garnet, Oval, VS-SI, Photo A

1.83ct Natural Medium-Dark Orange Hessonite Garnet, Oval, VS-SI

Hessonite Garnet

1.83ct1 pc
$ 48.31
9 x 7 mm (calibrated)
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1.60ct Natural Medium Pink Strawberry Quartz, Oval, Translucent, Photo A

1.60ct Natural Medium Pink Strawberry Quartz, Oval, Translucent

Strawberry Quartz

1.60ct1 pc
$ 14.78
9 x 7 mm (calibrated)
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26.02ctw Natural Medium Green Prehnite, Fancy, Transparent, Photo A

26.02ctw Natural Medium Green Prehnite, Fancy, Transparent

Prehnite

26.02ct total4 pcs
$ 43.63
15.6 x 11.5 mm
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26.66ct Natural Multicolor Jasper, Fancy, Opaque, Photo A

26.66ct Natural Multicolor Jasper, Fancy, Opaque

Jasper

26.66ct1 pc
$ 35.20
27.5 x 18.3 mm
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2.80ctw Natural Sky Blue Topaz, Trillion, VVS-VS, Photo A

2.80ctw Natural Sky Blue Topaz, Trillion, VVS-VS

Topaz

2.80ct total2 pcs
$ 24.13
7.2 x 7.3 mm
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24.60ct Natural Medium-Light Brown Moonstone, Oval, Translucent, Photo A

24.60ct Natural Medium-Light Brown Moonstone, Oval, Translucent

Moonstone

24.60ct1 pc
$ 59.04
20 x 15 mm (calibrated)
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35.46ct Natural Multicolor Jasper, Fancy, Opaque, Photo A

35.46ct Natural Multicolor Jasper, Fancy, Opaque

Jasper

35.46ct1 pc
$ 12.77
38.4 x 11.1 mm
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0.05ct Natural Blue Diamond, Square, VVS-VS, Photo A

0.05ct Natural Blue Diamond, Square, VVS-VS

Diamond

0.05ct1 pc
$ 67.34
2.2 x 2.1 mm
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0.79ct Natural Bright Blue Lapis Lazuli, Round, Opaque, Photo A

0.79ct Natural Bright Blue Lapis Lazuli, Round, Opaque

Lapis Lazuli

0.79ct1 pc
$ 1.27
6 mm (calibrated)
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4.94ct Natural Sky Blue Topaz, Fancy, VVS-VS, Photo A

4.94ct Natural Sky Blue Topaz, Fancy, VVS-VS

Topaz

4.94ct1 pc
$ 39.12
12 x 8 mm (calibrated)
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8.96ct Natural Greenish Blue Aquamarine, Pear Shape, VS-SI, Photo A
Aquamarine Product Video (730039)

8.96ct Natural Greenish Blue Aquamarine, Pear Shape, VS-SI

Aquamarine

8.96ct1 pc
$ 860.16
19.6 x 11.5 mm
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9.07ct Natural Multicolor Jasper, Oval, Opaque, Photo A

9.07ct Natural Multicolor Jasper, Oval, Opaque

Jasper

9.07ct1 pc
$ 17.95
20 x 15 mm (calibrated)
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0.67ct Natural Deep Gold Citrine, Heart, VVS, Photo A

0.67ct Natural Deep Gold Citrine, Heart, VVS

Citrine

0.67ct1 pc
$ 6.43
6 x 6 mm (calibrated)
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4.50ct Natural Multicolor Rainbow Pyrite, Fancy, Opaque, Photo A

4.50ct Natural Multicolor Rainbow Pyrite, Fancy, Opaque

Rainbow Pyrite

4.50ct1 pc
$ 16.20
16.6 x 9.5 mm
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0.81ct Natural Hot Pink Tourmaline, Oval, Transparent, Photo A

0.81ct Natural Hot Pink Tourmaline, Oval, Transparent

Tourmaline

0.81ct1 pc
$ 38.88
6.4 x 4.9 mm
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22.27ct Natural Golden Brown Tiger's Eye, Fancy, Opaque, Photo A

22.27ct Natural Golden Brown Tiger's Eye, Fancy, Opaque

Tiger's Eye

22.27ct1 pc
$ 14.69
31.9 x 9.2 mm
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4.41ctw Natural White Zircon, Round, VVS-VS, Photo A

4.41ctw Natural White Zircon, Round, VVS-VS

Zircon

4.41ct total4 pcs
$ 87.32
6 mm (calibrated)
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GemSelect Certified Store Reviews

GemSelect: Over 18 Years in the Gemstone Business! Thank you for trusting us with your purchase!

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 like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All Good

Posted By Boru in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 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

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.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

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 like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All Good

Posted By Boru in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 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
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