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Buy Octagon Shape 27 x 20 mm Gems

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11.47ct Natural Multicolor Ammolite, Fancy, Opaque, Photo A
Ammolite Product Video (634249)

11.47ct Natural Multicolor Ammolite, Fancy, Opaque

Ammolite

11.47ct1 pc
$ 137.64
19.7 x 15.7 mm
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2.27ct Natural Dark Magenta-Pink Rubellite Tourmaline, Pear Shape, Transparent, Photo A

2.27ct Natural Dark Magenta-Pink Rubellite Tourmaline, Pear Shape, Transparent

Rubellite Tourmaline

2.27ct1 pc
$ 89.89
11.2 x 7.2 mm
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0.50ct Natural Dark Orange Citrine, Marquise, VVS-VS, Photo A

0.50ct Natural Dark Orange Citrine, Marquise, VVS-VS

Citrine

0.50ct1 pc
$ 4.20
8.2 x 4.3 mm
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14.72ct Natural Wine Red Ruby, Pear Shape, VS, Photo A
Ruby Product Video (728737)

14.72ct Natural Wine Red Ruby, Pear Shape, VS

Ruby

14.72ct1 pc
$ 1,766.40
16 x 12.6 mm
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1.96ctw Natural Cider Orange Moonstone, Cushion, Translucent, Photo A

1.96ctw Natural Cider Orange Moonstone, Cushion, Translucent

Moonstone

1.96ct total2 pcs
$ 4.70
6 x 6 mm (calibrated)
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0.76ct Natural Very Light Yellow Color-Change Diaspore, Octagon / Emerald Cut, VS-SI, Photo A

0.76ct Natural Very Light Yellow Color-Change Diaspore, Octagon / Emerald Cut, VS-SI

Color-Change Diaspore

0.76ct1 pc
$ 32.71
6.7 x 4.1 mm
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1.42ct Natural Pinkish Purple Sapphire, Cushion, VS, Photo A
Sapphire Product Video (447717)

1.42ct Natural Pinkish Purple Sapphire, Cushion, VS

Sapphire

1.42ct1 pc
$ 902.22
6.9 x 5.5 mm
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2.60ctw Natural Medium Violet Amethyst, Oval, VVS-VS, Photo A

2.60ctw Natural Medium Violet Amethyst, Oval, VVS-VS

Amethyst

2.60ct total6 pcs
$ 15.60
6.1 x 4.1 mm
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0.39ct Natural Light Purplish Blue Sapphire, Heart, VS, Photo A

0.39ct Natural Light Purplish Blue Sapphire, Heart, VS

Sapphire

0.39ct1 pc
$ 37.44
4.5 x 4.2 mm
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0.69ct Natural Light Red Ruby, Round, VS, Photo A

0.69ct Natural Light Red Ruby, Round, VS

Ruby

0.69ct1 pc
$ 477.35
5.8 mm
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3.24ctw Natural Golden Citrine, Octagon / Emerald Cut, VS, Photo A

3.24ctw Natural Golden Citrine, Octagon / Emerald Cut, VS

Citrine

3.24ct total2 pcs
$ 29.94
8 x 6 mm (calibrated)
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0.05ct Natural Blue Diamond, Round, VS-SI, Photo A

0.05ct Natural Blue Diamond, Round, VS-SI

Diamond

0.05ct1 pc
$ 60.00
2.2 mm (calibrated)
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1.54ct Natural Warm White Sillimanite Cat's Eye, Oval, Translucent, Photo A

1.54ct Natural Warm White Sillimanite Cat's Eye, Oval, Translucent

Sillimanite Cat's Eye

1.54ct1 pc
$ 6.10
7.8 x 5.7 mm
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4.54ct Natural Cool Green Fluorite, Oval, Transparent, Photo A

4.54ct Natural Cool Green Fluorite, Oval, Transparent

Fluorite

4.54ct1 pc
$ 21.79
10.4 x 8.4 mm
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0.92ct Natural Light Yellow Citrine, Heart, Transparent, Photo A

0.92ct Natural Light Yellow Citrine, Heart, Transparent

Citrine

0.92ct1 pc
$ 6.44
6 x 6 mm (calibrated)
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3.08ct Natural Black Star Diopside, Oval, Opaque, Photo A

3.08ct Natural Black Star Diopside, Oval, Opaque

Star Diopside

3.08ct1 pc
$ 18.48
10 x 8 mm (calibrated)
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2.34ct Natural Multicolor Opal, Oval, Transparent, Photo A

2.34ct Natural Multicolor Opal, Oval, Transparent

Opal

2.34ct1 pc
$ 59.09
10 x 8 mm (calibrated)
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1.15ct Natural Medium Green Tourmaline, Octagon / Emerald Cut, VS, Photo A

1.15ct Natural Medium Green Tourmaline, Octagon / Emerald Cut, VS

Tourmaline

1.15ct1 pc
$ 37.96
15.8 x 3 mm
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0.90ctw Natural Golden Citrine, Heart, VVS-VS, Photo A

0.90ctw Natural Golden Citrine, Heart, VVS-VS

Citrine

0.90ct total2 pcs
$ 7.20
5 x 5 mm (calibrated)
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7.28ct Natural Golden-Orange Calcite, Pear Shape, Translucent, Photo A

7.28ct Natural Golden-Orange Calcite, Pear Shape, Translucent

Calcite

7.28ct1 pc
$ 6.02
18.2 x 11.7 mm
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1.73ct Natural Mint Green Prehnite, Round, Transparent, Photo A

1.73ct Natural Mint Green Prehnite, Round, Transparent

Prehnite

1.73ct1 pc
$ 13.45
7 mm (calibrated)
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13.24ctw Natural Black Star Diopside, Oval, Opaque, Photo A

13.24ctw Natural Black Star Diopside, Oval, Opaque

Star Diopside

13.24ct total2 pcs
$ 66.20
11 x 9 mm (calibrated)
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5.51ctw Natural Lively Green Peridot, Oval, VS, Photo A

5.51ctw Natural Lively Green Peridot, Oval, VS

Peridot

5.51ct total4 pcs
$ 60.61
8 x 6 mm (calibrated)
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47.67ct Natural Multicolor Jasper, Oval, Opaque, Photo A

47.67ct Natural Multicolor Jasper, Oval, Opaque

Jasper

47.67ct1 pc
$ 47.20
38.3 x 25.9 mm
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1.42ct Natural Medium Dark-Red Ruby, Oval, VS, Photo A

1.42ct Natural Medium Dark-Red Ruby, Oval, VS

Ruby

1.42ct1 pc
$ 51.12
7 x 5 mm (calibrated)
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3.38ctw Natural Ginger Orange Sunstone, Oval, Translucent, Photo A

3.38ctw Natural Ginger Orange Sunstone, Oval, Translucent

Sunstone

3.38ct total4 pcs
$ 23.34
7 x 5 mm (calibrated)
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27.31ct Natural Forest Green Aventurine, Fancy, Opaque, Photo A

27.31ct Natural Forest Green Aventurine, Fancy, Opaque

Aventurine

27.31ct1 pc
$ 2.73
33.8 x 10.3 mm
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0.56ct Natural Twilight Blue Sapphire, Round, VS, Photo A

0.56ct Natural Twilight Blue Sapphire, Round, VS

Sapphire

0.56ct1 pc
$ 401.63
5 mm (calibrated)
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0.51ct Natural Golden Sapphire, Oval, VVS-VS, Photo A

0.51ct Natural Golden Sapphire, Oval, VVS-VS

Sapphire

0.51ct1 pc
$ 32.62
6 x 4 mm (calibrated)
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12.80ct Natural Greenish Blue Aquamarine, Oval, VS-SI, Photo A
Aquamarine Product Video (730047)

12.80ct Natural Greenish Blue Aquamarine, Oval, VS-SI

Aquamarine

12.80ct1 pc
$ 1,228.80
18.9 x 14.6 mm
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16.66ct Natural Medium Dark-Purple Ruby-Zoisite, Flower Cut, Opaque, Photo A

16.66ct Natural Medium Dark-Purple Ruby-Zoisite, Flower Cut, Opaque

Ruby-Zoisite

16.66ct1 pc
$ 24.40
15.2 x 14 mm
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1.81ct Natural Deep Blood Red Almandine Garnet, Oval, VS, Photo A

1.81ct Natural Deep Blood Red Almandine Garnet, Oval, VS

Almandine Garnet

1.81ct1 pc
$ 81.45
9 x 7 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 -> 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

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 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

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love Gem Select! When you order what you see is what you get. As soon as you make payment that particular gem is taken off the photo album. That way the one you select is a one of that kind.

Posted By Desertchick in March, 2025
Source: Bizrate
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