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

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Overall Rating -> 9

Overall good, shipping prices just seem a little on the high side.

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Overall Rating -> 10

Easy to find products I want. I've ordered several times from gem select and never any problems. Will order again. Thank you.

Posted By Ray in January, 2024

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Overall Rating -> 10

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

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Overall Rating -> 10

Easy to use as always and in all steps from opening site to paying.

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Overall Rating -> 10

Great selection of various gems, easy to navigate site

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Overall Rating -> 8

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Overall Rating -> 10

My last experience was good, in fact every experience I have had with them has met my expectations or surpassed them. These are really good people to work with.

Posted By Spinach in May, 2023

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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 -> 10

I purchase all of my stones from GemSelect! They're the best I've found for both selection and value.

Posted By Terry in June, 2023

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Overall Rating -> 10

LOVE YOU GUYS. YOU CARRY EVERY GEMSTON I WANT. THE PRICE IS GREAT,THE PRODUCT IS OUTSTANDING,AND THE SERVICE CANT BE BEET.

Posted By APPS in April, 2024

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Overall Rating -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024

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Overall Rating -> 10

I have had and will always have a great time shopping at GemSelect. It's a great web site with great products and great service.

Posted By Apps in November, 2023

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Overall Rating -> 10

Found what I was looking for

Posted By Rian in June, 2023

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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

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Gemstones A-Z

Buy Octagon Shape 6x4 mm Gems

9.79 carat Purple Kunzite, Pear Shape loose Kunzite from Afghanistan, Natural Untreated Gem, 15.9 x 13 mm

0.88 ct Oval Cat's Eye Opal, 7.3 x 5.5 mm From Madagascar

6.13 carat Swiss Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 8.9 x 8.1 mm

3.47 ct Purple Kunzite, 8.7 x 7.2 mm Cushion Cut From Afghanistan

7.89 carat Swiss Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 9.9 x 10 mm

18.41 ct Yellow Quartz, 18.1 x 18 mm Octagon Concave Cut From Brazil

20.91 ct Cushion Chalcedony, 23 x 19.2 mm From Brazil

10.15 ct Loose Baguette Lapis Lazuli, 15.6 x 11.4 mm From Afghanistan

3.22 ct Yellow Quartz, 11.1 x 11 mm Carved From Brazil

2.87 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 25.2 x 4 mm

0.91 ct Loose Baguette Cut Smoky Quartz, 6.5 x 5.4 mm From Brazil

2.13 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8 x 6.1 mm

2.6 carat Square Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 5.1 x 5 mm

32.26 ct Cushion Fossil Coral, 20.1 x 12.3 mm From Indonesia

4.39 ct Oval Spectrolite, 10 x 8.2 mm From Finland

19.48 carat Carved Flower Ruby, loose Certified Ruby from Madagascar, Natural Gems, 15 x 10.8 mm

2.77 carat Green Agate, Pear loose Agate from India, Natural Gem, 12.1 x 8.2 mm

0.55 ct Pink Spinel, 5.2 x 4.1 mm Cushion Cut From Tanzania

20.6 ct Yellow Aventurine, 31.2 x 9.3 mm Pencil Cut From Brazil

0.75 ct Loose Yellow Sapphire, 4.6 x 4.6 mm Cushion Cut From Tanzania

0.62 ct Purple Spinel, 5.6 x 4.7 mm Oval Cut From Tanzania

31.11 ct Fancy Amethyst Geode Slice, 29.6 x 23.1 mm From Brazil

3.08 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 9 x 8.9 mm

1.13 ct Loose Yellow Sapphire, 7.5 x 5 mm Cushion Cut From Tanzania

7.24 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gems, 10.8 x 9 mm

1.36 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5.1 mm

6.04 carat Swiss Blue Topaz, Carved Flower loose Topaz from Brazil, Natural Gem, 11.6 x 11.4 mm

39.47 ct Baguette Charoite, 32.2 x 19.8 mm From Russia

40.11 ct Fancy Tiger's Eye Matrix, 23.5 x 19.7 mm From Mexico

1.51 ct Round Spectrolite, 8 mm From Finland

2.44 ct Round Tiger's Eye, 7.8 mm From Thailand

0.02 ct Loose Green Diamond, 1.9 mm Diamond Cut From India

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