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Buy Octagon Shape 27 x 20 mm Gems

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29.21ct Natural Light Purplish Blue Chalcedony, Cushion, Opaque, Photo A

29.21ct Natural Light Purplish Blue Chalcedony, Cushion, Opaque

Chalcedony

29.21ct1 pc
$ 73.03
33.6 x 18.4 mm
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4.41ct Natural Medium Brown Smoky Quartz, Round, VVS-VS, Photo A

4.41ct Natural Medium Brown Smoky Quartz, Round, VVS-VS

Smoky Quartz

4.41ct1 pc
$ 8.74
11 mm (calibrated)
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1.18ct Natural Light Pink Morganite, Round, VS, Photo A

1.18ct Natural Light Pink Morganite, Round, VS

Morganite

1.18ct1 pc
$ 77.88
7 mm (calibrated)
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8.74ct Natural Multicolor Rainbow Pyrite, Pear Shape, Opaque, Photo A

8.74ct Natural Multicolor Rainbow Pyrite, Pear Shape, Opaque

Rainbow Pyrite

8.74ct1 pc
$ 31.46
23 x 10.5 mm
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4.66ctw Natural Light Yellow Green Prehnite, Oval, Transparent, Photo A

4.66ctw Natural Light Yellow Green Prehnite, Oval, Transparent

Prehnite

4.66ct total2 pcs
$ 30.76
8.5 x 7.1 mm
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1.81ct Natural Warm Green Tourmaline, Oval, VS, Photo A

1.81ct Natural Warm Green Tourmaline, Oval, VS

Tourmaline

1.81ct1 pc
$ 253.40
7.4 x 6.1 mm
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5.79ctw Natural Medium-Light Orange Sunstone, Round, Translucent, Photo A

5.79ctw Natural Medium-Light Orange Sunstone, Round, Translucent

Sunstone

5.79ct total2 pcs
$ 41.28
9 mm (calibrated)
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13.63ct Natural Reddish Orange Moonstone, Round, Opaque, Photo A

13.63ct Natural Reddish Orange Moonstone, Round, Opaque

Moonstone

13.63ct1 pc
$ 32.71
14 mm (calibrated)
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1.55ct Natural Medium Yellow Golden Beryl, Oval, VVS-VS, Photo A

1.55ct Natural Medium Yellow Golden Beryl, Oval, VVS-VS

Golden Beryl

1.55ct1 pc
$ 45.01
9 x 7 mm (calibrated)
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2.68ctw Natural Deep Scarlet Red Pyrope Garnet, Square, VS, Photo A

2.68ctw Natural Deep Scarlet Red Pyrope Garnet, Square, VS

Pyrope Garnet

2.68ct total6 pcs
$ 24.77
4 x 4 mm (calibrated)
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2.27ct Natural Deep Green Tourmaline, Octagon / Emerald Cut, VVS, Photo A

2.27ct Natural Deep Green Tourmaline, Octagon / Emerald Cut, VVS

Tourmaline

2.27ct1 pc
$ 68.10
26.3 x 3.3 mm
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0.55ct Natural Apricot Orange Sapphire, Heart, VVS-VS, Photo A

0.55ct Natural Apricot Orange Sapphire, Heart, VVS-VS

Sapphire

0.55ct1 pc
$ 40.92
4.7 x 4.5 mm
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10.27ct Natural Multicolor Agate, Oval, Opaque, Photo A

10.27ct Natural Multicolor Agate, Oval, Opaque

Agate

10.27ct1 pc
$ 11.71
14.1 x 13.1 mm
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6.94ct Natural Medium Rose Pink Rose Quartz, Square, Transparent, Photo A

6.94ct Natural Medium Rose Pink Rose Quartz, Square, Transparent

Rose Quartz

6.94ct1 pc
$ 45.80
11 x 11 mm (calibrated)
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1.99ct Natural Medium Gold Citrine, Trillion, VS, Photo A

1.99ct Natural Medium Gold Citrine, Trillion, VS

Citrine

1.99ct1 pc
$ 12.97
9 x 9 mm (calibrated)
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1.08ct Natural Light Tiger Orange Sunstone, Oval, Translucent, Photo A

1.08ct Natural Light Tiger Orange Sunstone, Oval, Translucent

Sunstone

1.08ct1 pc
$ 9.07
8 x 6 mm (calibrated)
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6.11ctw Natural Multicolor Mystic Quartz, Oval, VVS-VS, Photo A

6.11ctw Natural Multicolor Mystic Quartz, Oval, VVS-VS

Mystic Quartz

6.11ct total2 pcs
$ 51.32
11.1 x 9.9 mm
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10.22ct Natural Blackish Red Almandine Garnet, Oval, VVS-VS, Photo A
Almandine Garnet Product Video (732455)

10.22ct Natural Blackish Red Almandine Garnet, Oval, VVS-VS

Almandine Garnet

10.22ct1 pc
$ 367.92
15.2 x 11 mm
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0.23ct Natural Pinkish Violet Iolite, Octagon / Emerald Cut, VVS-VS, Photo A

0.23ct Natural Pinkish Violet Iolite, Octagon / Emerald Cut, VVS-VS

Iolite

0.23ct1 pc
$ 11.04
5 x 2.8 mm
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1.99ctw Natural Medium Red Pyrope Garnet, Octagon / Emerald Cut, VS, Photo A

1.99ctw Natural Medium Red Pyrope Garnet, Octagon / Emerald Cut, VS

Pyrope Garnet

1.99ct total4 pcs
$ 16.72
5.6 x 3.8 mm
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15.01ctw Natural Black Spinel, Oval, Opaque, Photo A

15.01ctw Natural Black Spinel, Oval, Opaque

Spinel

15.01ct total2 pcs
$ 69.35
14 x 10 mm (calibrated)
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0.55ct Natural Light Pink Morganite, Pear Shape, VVS-VS, Photo A

0.55ct Natural Light Pink Morganite, Pear Shape, VVS-VS

Morganite

0.55ct1 pc
$ 58.08
7.3 x 4.5 mm
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3.44ctw Natural Bluish White Rainbow Moonstone, Square, Transparent, Photo A

3.44ctw Natural Bluish White Rainbow Moonstone, Square, Transparent

Rainbow Moonstone

3.44ct total20 pcs
$ 71.41
3.2 x 3 mm
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1.30ct Natural Forest Green Tourmaline, Octagon / Emerald Cut, VS, Photo A

1.30ct Natural Forest Green Tourmaline, Octagon / Emerald Cut, VS

Tourmaline

1.30ct1 pc
$ 78.00
7.7 x 4.7 mm
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0.94ctw Natural Golden Citrine, Heart, VVS-VS, Photo A

0.94ctw Natural Golden Citrine, Heart, VVS-VS

Citrine

0.94ct total2 pcs
$ 9.02
5 x 5 mm (calibrated)
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6.61ct Natural Pine Green Malachite, Oval, Opaque, Photo A

6.61ct Natural Pine Green Malachite, Oval, Opaque

Malachite

6.61ct1 pc
$ 8.72
14 x 10 mm (calibrated)
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0.82ct Natural Deep Orange Sphalerite, Oval, SI, Photo A

0.82ct Natural Deep Orange Sphalerite, Oval, SI

Sphalerite

0.82ct1 pc
$ 49.20
5.9 x 4.7 mm
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0.68ct Natural Medium Orange Sapphire, Oval, VS, Photo A

0.68ct Natural Medium Orange Sapphire, Oval, VS

Sapphire

0.68ct1 pc
$ 82.91
6 x 4 mm (calibrated)
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1.91ctw Natural Violet Blue Tanzanite, Oval, VVS-VS, Photo A

1.91ctw Natural Violet Blue Tanzanite, Oval, VVS-VS

Tanzanite

1.91ct total4 pcs
$ 148.98
5.7 x 4 mm
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0.80ct Natural Bright Forest Green Chrome Diopside, Marquise, VS, Photo A

0.80ct Natural Bright Forest Green Chrome Diopside, Marquise, VS

Chrome Diopside

0.80ct1 pc
$ 24.00
9.8 x 4.6 mm
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3.29ct Natural Bubblegum Pink Rose Quartz, Octagon / Emerald Cut, Transparent, Photo A

3.29ct Natural Bubblegum Pink Rose Quartz, Octagon / Emerald Cut, Transparent

Rose Quartz

3.29ct1 pc
$ 21.72
9.6 x 9.5 mm
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4.34ct Natural Reddish Orange Sunstone, Round, Translucent, Photo A

4.34ct Natural Reddish Orange Sunstone, Round, Translucent

Sunstone

4.34ct1 pc
$ 31.91
11 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

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Had a great experience and the prices are great

Posted By BuBx99 in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Site is easy to navigate and the variety is great and how often new products are added is also great.

Posted By Jhidron in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate
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