Buy Calibrated 6x4mm Octagon Shape Natural Gems at GemSelect

GemSelect’s octagon (Emerald) shape 6x4mm gems are the ideal size for earrings, bracelets, and rings. Our calibrated gems are the perfect solution for new designs and repairs to existing pieces. The specifications of our stones ensure our stones to be within 0.24mm of the specified size making it easy to replace lost or damaged stones for cherished pieces. Our octagon-shaped gemstones are available in single units, pairs, lots, and multi-colored lots to assist you in selection.

A pair of earrings or a ring including GemSlect's 6x4mm octagon shaped gemstones can make an excellent anniversary gift for a cherished partner. We find the octagon or emerald cut to be ideal for a ring or earrings featured gem as it embodies the traditional design for a stone. The style of this gem gives the jewelry a classic feel that's always fashionable to wear. Our 6x4mm octagon stones arrange well when placed horizontally into a bracelet. Though they are seen most commonly in symmetrical arrangements, they can also appear in asymmetrical designs if set correctly.

6x4mm octagon-cut precious and semi-precious gemstones are available through GemSelect at wholesale prices. For additional information about each gemstone click the specific stone or stones of your choice. In this section, you will find detail including the weight of the gem, color, origin, treatment, cut, and all other applicable information.

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Gemstone Information

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Overall Rating -> 10

The gems were as described, which is kind of rare these days. I am happy with the purchase, and delevery on time.

Posted By T-bone in October, 2023

Source: Bizrate

Overall Rating -> 7

I feel pretty good so far, pending the delivery of the item ordered.

Posted By Steve in November, 2023

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Overall Rating -> 9

They had a easy to navigate directory for all the currently available products. You could filter by almost any parameter you could think of. The checkout process was smooth and painless, and the shipping was quick and efficient. All-in-all, it was a very positive experience.

Posted By Brian in May, 2024

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Overall Rating -> 10

I was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

Posted By Ana in September, 2023

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Overall Rating -> 10

Very easy. I have purchased a few times before and was satisfied each time. Thank you.

Posted By Ray in December, 2023

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Overall Rating -> 10

I loved the opportunity to shop on a website that I could trust 👍

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Overall Rating -> 10

love yall

Posted By Rock hunter in August, 2023

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Overall Rating -> 10

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

Posted By Nikki J in September, 2023

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Overall Rating -> 8

Found on a search engine. Scanned inventory and made a small purchase.

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Overall Rating -> 10

The website is very easy to use. The search function, filter and sort functions are very helpful.

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Overall Rating -> 10

it was good

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Overall Rating -> 10

I find the website user friendly.

Posted By Becky in August, 2023

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Overall Rating -> 10

Love the variety of stones, sizes and the prices

Posted By Dorita in March, 2024

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Overall Rating -> 10

this was very easy im exited to get my order

Posted By Mr. in April, 2024

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Overall Rating -> 10

I have used Gem Select many times over the past 10 years and have always been happy with the product & services

Posted By Ordain in August, 2023

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Gemstones A-Z

Buy Octagon Shape 6x4 mm Gems

6.6 ct Rainbow Pyrite, 17.7 x 12.8 mm From Russia

1.07 ct Black Diamond, 5 x 5 mm Princess Cut From India

0.94 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 6.1 x 4.1 mm

25.5 ct Oval Hematite, 19.2 x 15.7 mm From Brazil

2.66 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 4.9 x 3 mm

2.32 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5 mm

2.59 ct Round Cut Strawberry Quartz, 7.1 mm From Russia

27.95 ct Oval Maw-Sit-Sit, 19.8 x 14.6 mm From Myanmar

4.35 ct Green Agate, 18.5 x 9.4 mm Carved From India

2.98 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 10.2 mm

1.51 ct Loose Round Cut Lapis Lazuli, 6 mm From Afghanistan

10.71 ct Yellow Quartz, 15.3 x 14.6 mm Flower Cut From Brazil

0.55 ct Loose Purple Sapphire, 5 mm Diamond Cut From Tanzania

9.52 ct Square Malachite, 10.6 x 10.2 mm From Congo

23.2 ct Oval Jasper, 29 x 20.4 mm From Indonesia

0.63 carat Purple Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6.5 x 4.2 mm

2.42 ct Oval Checkerboard Smoky Quartz, 10 x 8.1 mm From Brazil

5.02 ct Orange Sunstone, 12 x 9.7 mm Oval Cut From India

3.03 ct Round Cut Rainbow Moonstone, 7.2 mm From the United States

60.9 ct Oval Jasper, 33.6 x 25.7 mm From Indonesia

5.4 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gem, 12.1 x 9.7 mm

3.24 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5 mm

8.13 ct Oval Quartz With Marcasite, 16.3 x 12.4 mm From Brazil

24.85 ct Oval Tiger's Eye, 25 x 17.9 mm From Thailand

1.31 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 7.1 x 7.1 mm

12.59 carat Uvarovite Garnet Drusy, loose Certified Uvarovite Garnet Drusy from Russia, Natural Untreated Gem, 16.6 x 14.9 mm

2.22 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 10 x 7.8 mm

1.84 ct Oval Prehnite, 8.1 x 7.6 mm From South Africa

66.95 carat Oval Star Garnet, loose Certified Star Garnet from India, Natural Untreated Gem, 21.8 x 18.6 mm

4.42 ct Round Cut Smoky Quartz, 10.8 mm From Brazil

0.91 carat Diamond-Cut Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gems, 3.8 mm

0.89 carat Blue Sapphire, Oval loose Sapphire from Sri Lanka, Natural Gem, 7.4 x 5.4 mm

Gemstone Information

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