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Buy Octagon Shape 27 x 20 mm Gems

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0.62ct Natural Earth Orange Sphalerite, Oval, SI-I1, Photo A

0.62ct Natural Earth Orange Sphalerite, Oval, SI-I1

Sphalerite

0.62ct1 pc
$ 37.20
5.5 x 4.6 mm
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0.64ct Natural Medium Green Tourmaline, Octagon / Emerald Cut, VVS, Photo A

0.64ct Natural Medium Green Tourmaline, Octagon / Emerald Cut, VVS

Tourmaline

0.64ct1 pc
$ 38.40
4.5 x 4.4 mm
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4.30ct Natural Medium Green Agate, Flower Cut, Translucent, Photo A

4.30ct Natural Medium Green Agate, Flower Cut, Translucent

Agate

4.30ct1 pc
$ 14.20
18.9 x 9.8 mm
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1.74ct Natural Medium Gold Citrine, Trillion, VVS, Photo A

1.74ct Natural Medium Gold Citrine, Trillion, VVS

Citrine

1.74ct1 pc
$ 13.78
9 x 9 mm (calibrated)
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5.14ctw Natural Grapefruit Pink Strawberry Quartz, Oval, Transparent, Photo A

5.14ctw Natural Grapefruit Pink Strawberry Quartz, Oval, Transparent

Strawberry Quartz

5.14ct total2 pcs
$ 46.44
11 x 9 mm (calibrated)
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1.88ct Natural Autumn Yellow Beryl, Trillion, VS, Photo A

1.88ct Natural Autumn Yellow Beryl, Trillion, VS

Beryl

1.88ct1 pc
$ 54.14
9 x 9 mm (calibrated)
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0.60ct Natural Light Yellow Color-Change Diaspore, Pear Shape, VVS-VS, Photo A

0.60ct Natural Light Yellow Color-Change Diaspore, Pear Shape, VVS-VS

Color-Change Diaspore

0.60ct1 pc
$ 26.76
6.2 x 4.8 mm
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19.53ct Natural Multicolor Agate, Oval, Opaque, Photo A

19.53ct Natural Multicolor Agate, Oval, Opaque

Agate

19.53ct1 pc
$ 23.44
17.1 x 15.7 mm
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0.55ct Natural Light Pink Tourmaline, Round, Transparent, Photo A

0.55ct Natural Light Pink Tourmaline, Round, Transparent

Tourmaline

0.55ct1 pc
$ 22.00
5 mm (calibrated)
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2.54ctw Natural Medium light Green Emerald, Round, Translucent, Photo A
Emerald Product Video (670739)

2.54ctw Natural Medium light Green Emerald, Round, Translucent

Emerald

2.54ct total2 pcs
$ 213.36
7 mm (calibrated)
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4.64ct Natural Golden-Orange Citrine, Briolette, VVS, Photo A

4.64ct Natural Golden-Orange Citrine, Briolette, VVS

Citrine

4.64ct1 pc
$ 31.30
13.7 x 8.1 mm
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10.23ct Natural Deep Pink Strawberry Quartz, Oval, Translucent, Photo A

10.23ct Natural Deep Pink Strawberry Quartz, Oval, Translucent

Strawberry Quartz

10.23ct1 pc
$ 94.52
16 x 12 mm (calibrated)
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13.85ct Natural Multicolor Pietersite, Oval, Opaque, Photo A

13.85ct Natural Multicolor Pietersite, Oval, Opaque

Pietersite

13.85ct1 pc
$ 55.40
23.7 x 14.2 mm
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3.50ctw Natural Multicolor Mystic Quartz, Pear Shape, VS, Photo A

3.50ctw Natural Multicolor Mystic Quartz, Pear Shape, VS

Mystic Quartz

3.50ct total2 pcs
$ 25.20
10 x 7 mm (calibrated)
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0.52ctw Natural Violet Blue Tanzanite, Pear Shape, VS, Photo A

0.52ctw Natural Violet Blue Tanzanite, Pear Shape, VS

Tanzanite

0.52ct total2 pcs
$ 37.44
5.2 x 4.1 mm
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0.15ct Natural Pinkish Violet Iolite, Pear Shape, VVS, Photo A

0.15ct Natural Pinkish Violet Iolite, Pear Shape, VVS

Iolite

0.15ct1 pc
$ 7.20
5 x 3 mm (calibrated)
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1.83ct Natural Deep Orange Zircon, Octagon / Emerald Cut, VS, Photo A

1.83ct Natural Deep Orange Zircon, Octagon / Emerald Cut, VS

Zircon

1.83ct1 pc
$ 36.24
7 x 5 mm (calibrated)
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1.45ctw Natural Multicolor Opal, Oval, Opaque, Photo A

1.45ctw Natural Multicolor Opal, Oval, Opaque

Opal

1.45ct total2 pcs
$ 52.20
8 x 6 mm (calibrated)
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0.45ct Natural Light Yellow Color-Change Diaspore, Cushion, VVS, Photo A

0.45ct Natural Light Yellow Color-Change Diaspore, Cushion, VVS

Color-Change Diaspore

0.45ct1 pc
$ 28.62
5.7 x 4.2 mm
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1.09ct Natural Light Earthy Green Sphene, Oval, Transparent, Photo A

1.09ct Natural Light Earthy Green Sphene, Oval, Transparent

Sphene

1.09ct1 pc
$ 7.20
6.4 x 5.3 mm
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15.68ct Natural Vivid Violet Amethyst, Oval, IF, Photo A
Amethyst Product Video (745421)

15.68ct Natural Vivid Violet Amethyst, Oval, IF

Amethyst

15.68ct1 pc
$ 125.44
20 x 15 mm (calibrated)
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2.34ct Natural Reddish Orange Hessonite Garnet, Cushion, VS-SI, Photo A

2.34ct Natural Reddish Orange Hessonite Garnet, Cushion, VS-SI

Hessonite Garnet

2.34ct1 pc
$ 46.51
7 x 7 mm (calibrated)
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1.64ct Natural Lively Green Tourmaline, Oval, VS, Photo A
Tourmaline Product Video (730436)

1.64ct Natural Lively Green Tourmaline, Oval, VS

Tourmaline

1.64ct1 pc
$ 275.52
7.9 x 6.5 mm
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0.85ct Natural Medium Dark Blue Kyanite, Round, SI, Photo A

0.85ct Natural Medium Dark Blue Kyanite, Round, SI

Kyanite

0.85ct1 pc
$ 25.50
6 mm (calibrated)
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9.78ct Natural Schorl Tourmaline, Octagon / Emerald Cut, Opaque, Photo A

9.78ct Natural Schorl Tourmaline, Octagon / Emerald Cut, Opaque

Tourmaline

9.78ct1 pc
$ 58.68
15 x 10 mm (calibrated)
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1.01ct Natural Golden-Yellow Citrine, Heart, VS, Photo A

1.01ct Natural Golden-Yellow Citrine, Heart, VS

Citrine

1.01ct1 pc
$ 9.34
7 x 7 mm (calibrated)
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44.82ct Natural Multicolor Tiger's Eye Matrix, Oval, Opaque, Photo A

44.82ct Natural Multicolor Tiger's Eye Matrix, Oval, Opaque

Tiger's Eye Matrix

44.82ct1 pc
$ 53.78
33.6 x 22.6 mm
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1.05ct Natural Very Light Yellow Color-Change Diaspore, Cushion, VS-SI, Photo A

1.05ct Natural Very Light Yellow Color-Change Diaspore, Cushion, VS-SI

Color-Change Diaspore

1.05ct1 pc
$ 51.61
8.9 x 5.4 mm
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2.81ct Natural Medium Yellow Apatite, Octagon / Emerald Cut, VS, Photo A

2.81ct Natural Medium Yellow Apatite, Octagon / Emerald Cut, VS

Apatite

2.81ct1 pc
$ 174.34
8.5 x 7.3 mm
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3.69ctw Natural Dark Red Pyrope Garnet, Octagon / Emerald Cut, VS, Photo A

3.69ctw Natural Dark Red Pyrope Garnet, Octagon / Emerald Cut, VS

Pyrope Garnet

3.69ct total6 pcs
$ 31.00
6 x 4 mm (calibrated)
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0.26ct Natural Medium Light-Orange Sphalerite, Round, SI, Photo A

0.26ct Natural Medium Light-Orange Sphalerite, Round, SI

Sphalerite

0.26ct1 pc
$ 15.60
3.5 mm (calibrated)
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3.21ct Natural Lime Green Prehnite, Oval, Transparent/Translucent, Photo A

3.21ct Natural Lime Green Prehnite, Oval, Transparent/Translucent

Prehnite

3.21ct1 pc
$ 8.47
9 x 7.7 mm
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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

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
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Overall Rating -> 10 star ratings

Very large selection from affordable to high end I will be coming back to shop again!

Posted By GreenGator in August, 2025
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Overall Rating -> 9 star ratings

I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!

Posted By Leo in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My whole experience is great.

Posted By Ghs in November, 2025
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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 -> 9 star ratings

The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.

Posted By Emmanuel in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 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
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