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

Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

Posted By Dee in September, 2023

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Overall Rating -> 10

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023

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Overall Rating -> 10

it was good

Posted By Bobk in January, 2024

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Overall Rating -> 10

I bought a small ring green so I may practice my jewelry making.

Posted By HairyOtter in July, 2023

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Overall Rating -> 10

I love the clear description of the certification options. It's very rare to see a gem site that offers a deep explanation of each institution that would certify the stone(s).

Posted By Oakcityceo in May, 2023

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Overall Rating -> 10

Perfect size I was looking for and great price

Posted By Izzy in September, 2023

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Overall Rating -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

Posted By MI photo in May, 2023

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Overall Rating -> 10

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

Posted By Kate in December, 2023

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Overall Rating -> 10

Super easy to do business for great products.

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Overall Rating -> 10

Website was incredibly easy and fast to use. Navigation and product outlay was simple and enjoyable to browse. Thank you and have a blessed day!

Posted By Devi in October, 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 -> 10

Posted By Papa in December, 2023

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Overall Rating -> 10

Great experience! First time buyer

Posted By Todi89 in February, 2024

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Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

Posted By NoHalalAl in March, 2024

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Overall Rating -> 10

Easy to use,I have spent many hours looking at the site

Posted By Skip in November, 2023

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Gemstones A-Z

Buy Octagon Shape 6x4 mm Gems

1.9 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7.6 x 6.1 mm

8.14 ct Oval Strawberry Quartz, 15.6 x 11.7 mm From Russia

0.7 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.6 x 4.4 mm

6.33 ct Pink Morganite, 12 x 10.1 mm Oval Cut From Afghanistan

2.86 ct White Moonstone, 8.2 x 6.1 mm Oval Cut From India

38.33 ct Oval Jasper, 33.3 x 15 mm From Mexico

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

0.33 ct Blue Apatite, 3.5 mm Round Cut From Madagascar

2.44 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 9.2 x 7 mm

35.72 ct Oval Obsidian, 36.6 x 21.5 mm From the United States

4.13 carat Rondelle Cut Tourmaline, loose Certified Tourmaline from Mozambique, Natural Untreated Gems, 4.3 x 4.3 mm

2.82 ct Loose Yellow Sapphire, 5.9 x 4.8 mm Oval Cut From Tanzania

2.45 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5 mm

0.37 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 4.6 x 3.6 mm

16.5 ct Druzy Citrine, 21.8 x 15.6 mm From Uruguay

0.47 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.2 x 4.1 mm

1.31 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 5.2 mm

0.61 carat Blue Sapphire, Oval Cabochon loose Sapphire from Madagascar, Natural Gem, 5.5 x 4.4 mm

1.43 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.2 x 5.9 mm

1.01 ct Round Onyx, 5.5 mm From Sri Lanka

1.6 ct Oval Cut Peridot, 7.1 x 5 mm From China

0.56 ct Orange Sphalerite, 5.2 x 4.4 mm Oval Cut From Spain

17.03 ct Yellow Quartz, 20.1 x 15.2 mm Oval Checkerboard From Brazil

4.69 ct Orange Sunstone, 12.2 x 10 mm Oval Cut From India

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

21.53 ct Oval Maw-Sit-Sit, 16.7 x 13.7 mm From Myanmar

3.49 ct Baguette Cut Smoky Quartz, 11.9 x 7.9 mm From Brazil

1.07 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gems, 6.1 x 4.1 mm

10.7 ct Round Rutile Quartz, 11 mm From India

15.28 carat Cameo Mother of Pearl, loose Certified Mother of Pearl from China, Natural Gem, 25.1 mm

0.02 ct Loose Blue Diamond, 2.1 mm Diamond Cut From India

4.29 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 14 x 8 mm

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