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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Thank you for trusting us with your purchase!

Overall Rating -> 10

Fine. All emails answered. Excellent service. Nice discount added for orders. Briefly, a very good experience.

Posted By C.J. in February, 2024

Source: Bizrate

Overall Rating -> 10

The site is very easy to use and I will continue to shop here. The quality is superb

Posted By Genia in January, 2024

Source: Bizrate

Overall Rating -> 10

i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

Posted By Jf in January, 2024

Source: Bizrate

Overall Rating -> 10

i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

Posted By Jf in January, 2024

Source: Bizrate

Overall Rating -> 10

I searched for the item by description and millimeter and had my choice come up and then made the best selection.

Posted By Tim in April, 2024

Source: Bizrate

Overall Rating -> 9

An it was good.

Posted By Miguel in June, 2023

Source: Bizrate

Overall Rating -> 10

Easy to navigate

Posted By G Funk in December, 2023

Source: Bizrate

Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

Source: Bizrate

Overall Rating -> 10

My overall interaction with your website was pleasant, as always.

Posted By RJ in April, 2024

Source: Bizrate

Overall Rating -> 9

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

Source: Bizrate

Overall Rating -> 10

Hello: You do have good website. Vast majority of folks would buy the Gems for its spiritual, physical / energy level, emotional level positive aspects. You have only very brief mention of this aspect of each Gem ..may be you can add little bit more about ways to leverage the beneificial effect of each gems i.e. some practical tips.ThanksRupen Patel

Posted By EarthDeep in February, 2024

Source: Bizrate

Overall Rating -> 10

Had a problem ordering first time. Someone from Gem Select reached out to me and cleared problem and I made purchase.

Posted By Myrtle in February, 2024

Source: Bizrate

Overall Rating -> 10

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

Posted By Kittypie070 in April, 2024

Source: Bizrate

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

Source: Bizrate

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

Source: Bizrate

Gemstones A-Z

Buy Octagon Shape 6x4 mm Gems

3.68 carat Yellow Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gems, 6.8 x 5.4 mm

5.92 ct Loose Baguette Labradorite, 9 x 7.1 mm From Madagascar

5.1 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 9 x 7.2 mm

1.53 ct Oval Cut Andalusite, 5.1 x 3.2 mm From Brazil

0.88 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 6.1 x 4.9 mm

0.79 carat Blue Kyanite, Round loose Kyanite from Nepal, Natural Untreated Gems, 4.4 mm

1.21 ct Oval Cut Peridot, 7.5 x 5.7 mm From China

0.36 carat Yellow Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 5.6 x 3.1 mm

13.6 ct Loose Oval Lapis Lazuli, 14.2 x 12.1 mm From Afghanistan

2.51 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5 x 3 mm

0.4 ct Green Sphene, 5.3 x 3.9 mm Oval Cut From Sri Lanka

3.22 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 6.7 x 4.8 mm

38.26 ct Yellow Quartz, 22.6 x 20.3 mm Oval Concave Cut From Brazil

0.73 ct Oval Sillimanite Cat's Eye, 7.3 x 5.3 mm From Madagascar

5.28 ct Rainbow Pyrite, 14.4 x 9.6 mm From Russia

7 ct Round Rutile Quartz, 12.3 mm From India

3.09 ct Square Cut Rainbow Moonstone, 3.2 x 3.2 mm From India

3.65 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.2 x 9 mm

10.62 ct Blue Green Grandidierite, 15.3 x 13.1 mm Oval Cut From Madagascar

2.08 ct Orange Moonstone, 8 x 7.9 mm Cushion Cut From India

0.91 ct Loose Cushion Cut Smoky Quartz, 7.1 x 5.2 mm From Brazil

0.32 ct Oval Chrysoberyl Cat's Eye, 3.3 x 3.3 mm From Sri Lanka

1.51 ct Loose Orange Moonstone, 8.2 x 8 mm Trillion Cut From India

7.2 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6 x 4 mm

13.83 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 22.4 x 16.4 mm

4.61 ct Oval Spectrolite, 10.1 x 8.3 mm From Finland

2.44 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 6 mm

4.48 ct Oval Cat's Eye Opal, 11.6 x 8.4 mm From Madagascar

13.64 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 18.5 x 15 mm

0.88 ct Loose Orange Sapphire, 5.8 x 3.9 mm Oval Cut From Tanzania

7.81 ct Princess Cut Rose Quartz, 11.8 x 11.6 mm From South Africa

3.12 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 10 mm

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