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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Overall Rating -> 10

The website is easy to navigate and the images are incredible.

Posted By Lindsy in October, 2023

Source: Bizrate

Overall Rating -> 8

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024

Source: Bizrate

Overall Rating -> 10

Always an easy experience using Gem select.

Posted By Jeff in November, 2023

Source: Bizrate

Overall Rating -> 10

first time here sooooooooooo we will seeeee!!!!! so far so good!!!!!!

Posted By Seastone 56 in October, 2023

Source: Bizrate

Overall Rating -> 10

Perfect size I was looking for and great price

Posted By Izzy in September, 2023

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 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

I have used this site for sseveral years now. All has been great. I started collection gems from GemSelect for years and wanted to collect at least one of most stones. I loved Safers because the mols is a 9 + and they come in every color. This is the best place to buy gems for the assortment and price. Great place to learn about gems too. Sometimes the shipping is a little on the long side. But I would give them a 9.9 out of 10 !!

Posted By Steve in July, 2023

Source: Bizrate

Overall Rating -> 9

An it was good.

Posted By Miguel in June, 2023

Source: Bizrate

Overall Rating -> 9

The selection and filtering is a little overwhelming, but that's only because there is so much to choose from.

Posted By Kasper in June, 2023

Source: Bizrate

Overall Rating -> 9

It went well

Posted By Rob in December, 2023

Source: Bizrate

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 -> 10

The website is easy to navigate and has a great selection. I am an amateur silver smith casting jewelry with stones

Posted By Jrplunk in April, 2024

Source: Bizrate

Overall Rating -> 9

I was in the market for birthstones for a lil gift project im doing. I'm no expert in gems or what not but the quality as far as i can tell seems to be spot on.

Posted By PixelComposer in January, 2024

Source: Bizrate

Overall Rating -> 9

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023

Source: Bizrate

Gemstones A-Z

Buy Octagon Shape 6x4 mm Gems

2.58 ct Yellow Apatite, 9.7 x 7.3 mm Oval Cut From Madagascar

23.37 ct Oval Onyx, 22.1 x 16 mm From Sri Lanka

0.77 ct Loose White Sapphire, 4.4 mm Diamond Cut From Madagascar

1.11 ct Blue Apatite, 4.7 x 3.9 mm Oval Cut From Madagascar

1.16 ct Oval Cut Peridot, 7.8 x 5.8 mm From China

1.23 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.9 x 4.8 mm

6.37 ct Yellow Apatite, 13.3 x 9.8 mm Octagon Cut From Madagascar

1.62 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 5.5 mm

17.03 carat Pencil Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 26.6 x 9.4 mm

4.76 ct Oval Quartz Cat's Eye, 12.1 x 8.5 mm From Sri Lanka

3.96 ct Round Pietersite, 11.1 mm From Namibia

14.08 ct Oval Larimar, 19.9 x 15 mm From the Dominican Republic

0.71 ct Oval Chocolate Opal, 7.9 x 6 mm From Ethiopia

0.62 ct Loose Orange Sapphire, 4.4 x 4.4 mm Cushion Cut From Tanzania

3.9 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Tanzania, Natural Untreated Gems, 7 x 4.9 mm

4.7 ct Round Cut Smoky Quartz, 11.6 mm From Brazil

1.14 ct Oval Cut Color-Change Diaspore, 8.1 x 5.1 mm From Turkey

25.96 ct Oval Jasper, 28 x 18.7 mm From Indonesia

38.8 carat Blue Sodalite, Pear loose Sodalite from Australia, Natural Untreated Gem, 46.8 x 19.3 mm

9.33 ct Loose Round Agate, 12.3 mm From Indonesia

2.38 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gems, 6 mm

0.75 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6 x 5.1 mm

2.69 ct Orange Moonstone, 8.1 x 6.1 mm Cushion Cut From India

13.71 ct Oval Checkerboard Labradorite, 18 x 13.7 mm From Madagascar

13.03 ct Round Cut Smoky Quartz, 15.9 mm From Brazil

8.25 ct Green Jadeite, 15.3 x 11.2 mm Oval Cut From Myanmar

5.24 ct Oval Quartz With Marcasite, 12.8 x 10.4 mm From Brazil

10.76 carat Sky Blue Topaz, Carved Leaf loose Topaz from Brazil, Natural Gem, 19 x 12.3 mm

0.45 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6.2 x 4.1 mm

25.14 ct Loose Green Amazonite, 36.8 x 9.4 mm Pencil Cut From Madagascar

0.71 carat London Blue Topaz, Square loose Topaz from Brazil, Natural Gem, 4.9 x 4.8 mm

13.66 ct Rainbow Pyrite, 29.5 x 12 mm From Russia

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