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Buy Octagon Shape 27 x 20 mm Gems

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0.51ct Natural Medium Pink Tourmaline, Round, Transparent, Photo A

0.51ct Natural Medium Pink Tourmaline, Round, Transparent

Tourmaline

0.51ct1 pc
$ 24.48
5 mm (calibrated)
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1.81ctw Natural Bluish Violet Tanzanite, Pear Shape, VS, Photo A

1.81ctw Natural Bluish Violet Tanzanite, Pear Shape, VS

Tanzanite

1.81ct total10 pcs
$ 83.63
5 x 3 mm (calibrated)
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1.46ct Natural Deep Orange Hessonite Garnet, Round, VS, Photo A

1.46ct Natural Deep Orange Hessonite Garnet, Round, VS

Hessonite Garnet

1.46ct1 pc
$ 32.76
6.5 mm (calibrated)
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3.18ct Natural Pinkish Violet Amethyst, Trillion, VS, Photo A

3.18ct Natural Pinkish Violet Amethyst, Trillion, VS

Amethyst

3.18ct1 pc
$ 20.99
10 x 10 mm (calibrated)
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6.42ctw Natural Medium Orange Carnelian, Fancy, Translucent, Photo A

6.42ctw Natural Medium Orange Carnelian, Fancy, Translucent

Carnelian

6.42ct total10 pcs
$ 13.56
6 x 6 mm (calibrated)
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10.87ctw Natural Light Royal Violet Chalcedony, Heart, Transparent/Translucent, Photo A

10.87ctw Natural Light Royal Violet Chalcedony, Heart, Transparent/Translucent

Chalcedony

10.87ct total3 pcs
$ 21.00
10 x 10 mm (calibrated)
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1.74ct Natural Golden Orange Citrine, Octagon / Emerald Cut, VVS-VS, Photo A

1.74ct Natural Golden Orange Citrine, Octagon / Emerald Cut, VVS-VS

Citrine

1.74ct1 pc
$ 16.70
8 x 6 mm (calibrated)
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1.25ct Natural Deep Orange Pink Tourmaline, Octagon / Emerald Cut, VVS-VS, Photo A

1.25ct Natural Deep Orange Pink Tourmaline, Octagon / Emerald Cut, VVS-VS

Tourmaline

1.25ct1 pc
$ 108.90
7.4 x 5 mm
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0.02ct Natural Blue Diamond, Square, VS, Photo A

0.02ct Natural Blue Diamond, Square, VS

Diamond

0.02ct1 pc
$ 26.94
2 x 1.8 mm
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7.82ctw Natural Multicolor Labradorite, Marquise, Translucent, Photo A

7.82ctw Natural Multicolor Labradorite, Marquise, Translucent

Labradorite

7.82ct total2 pcs
$ 20.83
14 x 7 mm (calibrated)
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0.49ct Natural Light Orange-Gold Sapphire, Cushion, VS, Photo A

0.49ct Natural Light Orange-Gold Sapphire, Cushion, VS

Sapphire

0.49ct1 pc
$ 32.08
4 x 4 mm (calibrated)
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1.54ct Natural Deep Gold Citrine, Octagon / Emerald Cut, VS, Photo A

1.54ct Natural Deep Gold Citrine, Octagon / Emerald Cut, VS

Citrine

1.54ct1 pc
$ 14.78
8 x 6 mm (calibrated)
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3.76ct Natural Black Star Sapphire, Oval, Opaque, Photo A

3.76ct Natural Black Star Sapphire, Oval, Opaque

Star Sapphire

3.76ct1 pc
$ 67.68
10 x 8 mm (calibrated)
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1.24ct Natural Light Green Tourmaline, Round, Transparent, Photo A

1.24ct Natural Light Green Tourmaline, Round, Transparent

Tourmaline

1.24ct1 pc
$ 24.76
6 mm (calibrated)
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1.75ctw Natural Medium Green Demantoid Garnet, Oval, VS, Photo A

1.75ctw Natural Medium Green Demantoid Garnet, Oval, VS

Demantoid Garnet

1.75ct total4 pcs
$ 231.00
5 x 4 mm (calibrated)
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40.84ct Natural Multicolor Tiger's Eye Matrix, Oval, Opaque, Photo A

40.84ct Natural Multicolor Tiger's Eye Matrix, Oval, Opaque

Tiger's Eye Matrix

40.84ct1 pc
$ 49.01
35 x 19.9 mm
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11.70ct Natural Pale Pine Green Maw-Sit-Sit, Oval, Opaque, Photo A

11.70ct Natural Pale Pine Green Maw-Sit-Sit, Oval, Opaque

Maw-Sit-Sit

11.70ct1 pc
$ 42.12
16 x 12 mm (calibrated)
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0.41ct Natural Violet Blue Tanzanite, Pear Shape, VVS-VS, Photo A

0.41ct Natural Violet Blue Tanzanite, Pear Shape, VVS-VS

Tanzanite

0.41ct1 pc
$ 29.52
5 x 4 mm (calibrated)
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2.56ct Natural Deep Orange-Gold Citrine, Octagon / Emerald Cut, VS, Photo A

2.56ct Natural Deep Orange-Gold Citrine, Octagon / Emerald Cut, VS

Citrine

2.56ct1 pc
$ 23.65
8 x 8 mm (calibrated)
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16.45ct Natural Medium Violet Amethyst, Cushion, VVS, Photo A

16.45ct Natural Medium Violet Amethyst, Cushion, VVS

Amethyst

16.45ct1 pc
$ 138.18
16 x 16 mm (calibrated)
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1.96ct Natural Blue Green Grandidierite, Oval, Translucent, Photo A

1.96ct Natural Blue Green Grandidierite, Oval, Translucent

Grandidierite

1.96ct1 pc
$ 546.48
9 x 7 mm (calibrated)
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6.17ct Natural Greenish Yellow Quartz, Round, VVS, Photo A

6.17ct Natural Greenish Yellow Quartz, Round, VVS

Quartz

6.17ct1 pc
$ 29.48
12 mm (calibrated)
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44.28ct Natural Multicolor Psilomelane Dendrite, Baguette, Opaque, Photo A

44.28ct Natural Multicolor Psilomelane Dendrite, Baguette, Opaque

Psilomelane Dendrite

44.28ct1 pc
$ 43.04
36.2 x 19 mm
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4.80ctw Natural Golden Citrine, Fancy, VVS-VS, Photo A

4.80ctw Natural Golden Citrine, Fancy, VVS-VS

Citrine

4.80ct total2 pcs
$ 31.68
14.1 x 7 mm
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10.64ct Natural Reddish Purple Star Ruby, Oval, Opaque, Photo A

10.64ct Natural Reddish Purple Star Ruby, Oval, Opaque

Star Ruby

10.64ct1 pc
$ 168.54
12 x 12 mm (calibrated)
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33.59ct Natural Multicolor Labradorite, Round, Translucent, Photo A

33.59ct Natural Multicolor Labradorite, Round, Translucent

Labradorite

33.59ct1 pc
$ 89.48
25.2 mm
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1.21ct Natural Multicolor Chocolate Opal, Oval, Opaque, Photo A

1.21ct Natural Multicolor Chocolate Opal, Oval, Opaque

Chocolate Opal

1.21ct1 pc
$ 39.60
9 x 7 mm (calibrated)
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9.08ct Natural Gingerbread Brown Tiger's Eye, Cushion, Opaque, Photo A

9.08ct Natural Gingerbread Brown Tiger's Eye, Cushion, Opaque

Tiger's Eye

9.08ct1 pc
$ 10.90
14 x 12 mm (calibrated)
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42.80ct Natural Medium Violet Charoite, Oval, Opaque, Photo A

42.80ct Natural Medium Violet Charoite, Oval, Opaque

Charoite

42.80ct1 pc
$ 84.74
32.6 x 25.6 mm
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2.34ct Natural Bright Gold Citrine, Oval, VVS-VS, Photo A

2.34ct Natural Bright Gold Citrine, Oval, VVS-VS

Citrine

2.34ct1 pc
$ 14.04
10 x 8 mm (calibrated)
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3.05ct Natural Pale Yellow Color-Change Diaspore, Cushion, VVS-VS, Photo A
Color-Change Diaspore Product Video (400535)

3.05ct Natural Pale Yellow Color-Change Diaspore, Cushion, VVS-VS

Color-Change Diaspore

3.05ct1 pc
$ 1,006.50
15.3 x 4.8 mm
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42.65ct Natural Medium Green Amazonite, Oval, Opaque, Photo A

42.65ct Natural Medium Green Amazonite, Oval, Opaque

Amazonite

42.65ct1 pc
$ 34.12
32.1 x 25.5 mm
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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 -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 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 -> 9 star ratings

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was easy to use and there were a lot of good options, I was satisfied.

Posted By Brielly in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

love these guys been ordering since 2000 maybe

Posted By JHT in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

Posted By Sal in July, 2025
Source: Bizrate
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