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Buy Octagon Shape 27 x 20 mm Gems

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3.39ct Natural Ginger Orange Sunstone, Round, Transparent, Photo A

3.39ct Natural Ginger Orange Sunstone, Round, Transparent

Sunstone

3.39ct1 pc
$ 23.80
10 mm (calibrated)
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1.55ct Natural Medium Green Sphene, Oval, Transparent, Photo A

1.55ct Natural Medium Green Sphene, Oval, Transparent

Sphene

1.55ct1 pc
$ 9.30
7.1 x 6.3 mm
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0.52ct Natural True Blue Kyanite, Round, VS-SI, Photo A

0.52ct Natural True Blue Kyanite, Round, VS-SI

Kyanite

0.52ct1 pc
$ 15.60
4.2 mm
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2.63ctw Natural White Zircon, Round, VVS-VS, Photo A
Zircon Product Video (608450)

2.63ctw Natural White Zircon, Round, VVS-VS

Zircon

2.63ct total2 pcs
$ 75.74
6 mm (calibrated)
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1.44ct Natural Raspberry Pink Strawberry Quartz, Oval, Translucent, Photo A

1.44ct Natural Raspberry Pink Strawberry Quartz, Oval, Translucent

Strawberry Quartz

1.44ct1 pc
$ 8.68
8 x 6 mm (calibrated)
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26.69ct Natural Light Violet Lepidolite, Fancy, Opaque, Photo A

26.69ct Natural Light Violet Lepidolite, Fancy, Opaque

Lepidolite

26.69ct1 pc
$ 9.61
39.1 x 9.3 mm
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15.49ct Natural Wine Red Ruby, Oval, Translucent, Photo A

15.49ct Natural Wine Red Ruby, Oval, Translucent

Ruby

15.49ct1 pc
$ 511.18
17.5 x 14.7 mm
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4.43ctw Natural Deep Orange-Gold Citrine, Marquise, VVS-VS, Photo A

4.43ctw Natural Deep Orange-Gold Citrine, Marquise, VVS-VS

Citrine

4.43ct total4 pcs
$ 34.11
9.9 x 5.1 mm
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5.66ct Natural Lime Green Prehnite, Pear Shape, Transparent, Photo A

5.66ct Natural Lime Green Prehnite, Pear Shape, Transparent

Prehnite

5.66ct1 pc
$ 169.80
14 x 9 mm (calibrated)
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13.50ct Natural Rose Pink Aragonite, Pear Shape, Opaque, Photo A

13.50ct Natural Rose Pink Aragonite, Pear Shape, Opaque

Aragonite

13.50ct1 pc
$ 19.04
22.2 x 14.4 mm
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1.13ct Natural Medium Brown Smoky Quartz, Round, VVS, Photo A

1.13ct Natural Medium Brown Smoky Quartz, Round, VVS

Smoky Quartz

1.13ct1 pc
$ 9.49
7 mm (calibrated)
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46.39ct Natural Multicolor Jasper, Oval, Opaque, Photo A

46.39ct Natural Multicolor Jasper, Oval, Opaque

Jasper

46.39ct1 pc
$ 32.46
38.4 x 22 mm
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0.63ct Natural London Blue Topaz, Oval, VVS-VS, Photo A

0.63ct Natural London Blue Topaz, Oval, VVS-VS

Topaz

0.63ct1 pc
$ 6.05
6.1 x 4.3 mm
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0.97ct Natural Light Yellow Color-Change Diaspore, Cushion, VVS, Photo A

0.97ct Natural Light Yellow Color-Change Diaspore, Cushion, VVS

Color-Change Diaspore

0.97ct1 pc
$ 61.69
6.9 x 4.6 mm
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1.32ctw Natural Bluish White Rainbow Moonstone, Heart, Transparent, Photo A

1.32ctw Natural Bluish White Rainbow Moonstone, Heart, Transparent

Rainbow Moonstone

1.32ct total2 pcs
$ 50.69
6 x 6 mm (calibrated)
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17.61ctw Natural Multicolor Jasper, Fancy, Opaque, Photo A

17.61ctw Natural Multicolor Jasper, Fancy, Opaque

Jasper

17.61ct total2 pcs
$ 12.05
20.7 x 12.4 mm
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0.56ct Natural Teal Sapphire, Briolette, VS, Photo A

0.56ct Natural Teal Sapphire, Briolette, VS

Sapphire

0.56ct1 pc
$ 60.48
5.4 x 3.4 mm
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3.48ct Natural Raspberry Pink Strawberry Quartz, Oval, Transparent, Photo A

3.48ct Natural Raspberry Pink Strawberry Quartz, Oval, Transparent

Strawberry Quartz

3.48ct1 pc
$ 31.44
11 x 9 mm (calibrated)
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1.71ct Natural Reddish Orange Sunstone, Oval, Translucent, Photo A

1.71ct Natural Reddish Orange Sunstone, Oval, Translucent

Sunstone

1.71ct1 pc
$ 12.31
9 x 7 mm (calibrated)
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5.43ctw Natural Light Pink Malaya Garnet, Cushion, VVS-VS, Photo A
Malaya Garnet Product Video (325787)

5.43ctw Natural Light Pink Malaya Garnet, Cushion, VVS-VS

Malaya Garnet

5.43ct total5 pcs
$ 228.06
7 x 5 mm (calibrated)
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2.67ct Natural Swiss Blue Topaz, Briolette, VVS-VS, Photo A

2.67ct Natural Swiss Blue Topaz, Briolette, VVS-VS

Topaz

2.67ct1 pc
$ 24.67
10.8 x 5.8 mm
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6.94ctw Natural Medium-Light Violet Amethyst, Oval, Transparent, Photo A

6.94ctw Natural Medium-Light Violet Amethyst, Oval, Transparent

Amethyst

6.94ct total2 pcs
$ 45.80
11 x 9 mm (calibrated)
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1.25ct Natural Light Hot Pink Tourmaline, Octagon / Emerald Cut, VVS, Photo A

1.25ct Natural Light Hot Pink Tourmaline, Octagon / Emerald Cut, VVS

Tourmaline

1.25ct1 pc
$ 113.86
10.7 x 3.7 mm
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4.17ct Natural Lime Green Prehnite, Oval, Transparent, Photo A

4.17ct Natural Lime Green Prehnite, Oval, Transparent

Prehnite

4.17ct1 pc
$ 32.32
9.9 x 9.1 mm
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0.10ct Natural Black Diamond, Round, Opaque, Photo A

0.10ct Natural Black Diamond, Round, Opaque

Diamond

0.10ct1 pc
$ 41.24
2.9 mm (calibrated)
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0.71ct Natural Medium Light-Green Tourmaline, Octagon / Emerald Cut, VVS, Photo A

0.71ct Natural Medium Light-Green Tourmaline, Octagon / Emerald Cut, VVS

Tourmaline

0.71ct1 pc
$ 42.60
5.6 x 3.7 mm
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0.57ct Natural Very Light Yellow Color-Change Diaspore, Marquise, VVS-VS, Photo A

0.57ct Natural Very Light Yellow Color-Change Diaspore, Marquise, VVS-VS

Color-Change Diaspore

0.57ct1 pc
$ 24.62
9.4 x 4 mm
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1.56ct Natural Medium Orange Hessonite Garnet, Oval, VS-SI, Photo A

1.56ct Natural Medium Orange Hessonite Garnet, Oval, VS-SI

Hessonite Garnet

1.56ct1 pc
$ 88.55
7.5 x 6.3 mm
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1.29ctw Natural White Zircon, Round, VS, Photo A

1.29ctw Natural White Zircon, Round, VS

Zircon

1.29ct total2 pcs
$ 45.97
5 mm (calibrated)
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1.77ctw Natural Swiss Blue Topaz, Pear Shape, VVS-VS, Photo A

1.77ctw Natural Swiss Blue Topaz, Pear Shape, VVS-VS

Topaz

1.77ct total2 pcs
$ 14.87
7 x 5 mm (calibrated)
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2.33ctw Natural White Zircon, Oval, VVS, Photo A

2.33ctw Natural White Zircon, Oval, VVS

Zircon

2.33ct total2 pcs
$ 16.67
7 x 5 mm (calibrated)
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2.73ct Natural Deep Violet Amethyst, Trillion, VVS-VS, Photo A

2.73ct Natural Deep Violet Amethyst, Trillion, VVS-VS

Amethyst

2.73ct1 pc
$ 22.93
10 x 10 mm (calibrated)
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Why Buy Octagon Shape 27 X 20 Mm Gems from GemSelect?

GemSelect Certified Store Reviews

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

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the product and the details about each of them.

Posted By Love It! in July, 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

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love, and have always loved, your website.

Posted By Aberabic in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
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

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025
Source: Bizrate
Enlarged Gemstone Image