Loose Octagon Cut Gemstones for Sale - In Stock, ready to Ship

The octagon or emerald-cut is a shape that was developed to maximize the color of emerald gemstones. Therefore, if you are looking for a gem that shows pure, unadulterated color at its best, emerald cut gems are the right choice. The octagon-cut showcases the color of a gemstone.

Octagonal colored gemstones from GemSelect include large stones, matched pairs and lots. Among the choices are both precious and semi-precious octagonal gems, for example, bicolored ametrine, tourmaline, emerald, amethyst, smoky quartz, diamond, topaz, tanzanite and tsavorite garnet. There are emerald-cut gemstones of every color, size, shape and cutting style available. Some emerald-cut gems are square and others are long and rectangular.

To find the octagonal gemstones that you seek, filter the results further by using the left-hand menu. You can buy emerald-cut stones by gem type or color. By using the top menu, you can search by carat weight, size, price and other factors, to enable you to find the exact emerald-cut gems that you are looking for. All items are in stock and ready to be shipped.

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Gemstone Information

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Overall Rating -> 10

Interested in unusual stones and found many that I purchased or will purchase in the near future. I have been a customer of gem select for almost ten years and have always been pleased with buying experience and the delivered product

Posted By Fairhope Pete in December, 2023

Source: Bizrate

Overall Rating -> 10

I have actually done business with them before and was quite satisfied with them then.My Mother collected turtle items and when I saw the Mother of Pearl turtle...I just thought of her and decided to buy it. It's even tinier than I thought, but so adorable!The gemstones I bought are for jewelry for my daughter's birthday.

Posted By Ktreva52 in February, 2024

Source: Bizrate

Overall Rating -> 10

the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

Posted By PixelComposer 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 -> 8

I am currently pleased. I like the layout of the website.

Posted By RayPoppa in January, 2024

Source: Bizrate

Overall Rating -> 10

Convenient selection, arrival on time

Posted By Alin in February, 2024

Source: Bizrate

Overall Rating -> 10

The website design is a bit finicky for mobile, but Im sure its most likely just a mobile issue. Amazing selection of products, great prices.

Posted By Kuba in December, 2023

Source: Bizrate

Overall Rating -> 10

Excellent site.

Posted By Boru in December, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

I have started a small gem brokerage. I find stones to meet clients needs. Gemselect has helped me find what people what.

Posted By Pirates Bounty in April, 2024

Source: Bizrate

Overall Rating -> 10

Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

Posted By Ray in February, 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 -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

Posted By Mark in March, 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

Everthing about researching and ordering from Gemselect was easy and uncomplicated. In the past I had payment problems, but your customer rep, Thomas, helped me get everything right. I will continue using Gemselet in the future for these reasons.

Posted By WildwillyfromArizona in August, 2023

Source: Bizrate

Gemstones A-Z

Buy Octagon / Emerald Cut Gems

80.36 ct Oval Chrysocolla, 51.7 x 25.3 mm From Australia

4.83 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.5 mm

0.5 ct Loose Orange Sapphire, 4.5 x 4.5 mm Cushion Cut From Tanzania

8.07 ct Oval Quartz With Marcasite, 14 x 12.1 mm From Brazil

19.94 ct Octagon / Emerald Cut Hematite, 20.4 x 14.1 mm From Brazil

1.54 ct Pink Morganite, 7.6 mm Round Cut From Afghanistan

27.23 ct Cushion Moss Agate, 27.3 x 23.1 mm From India

2.44 carat Blue Sapphire, Briolette with Hole loose Sapphire from Madagascar, Natural Gems, 4.8 mm

1.25 carat Bi-color Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 6.1 x 5.1 mm

25.66 ct Black Spinel, 20.1 x 9.9 mm Baguette Rose Cut From Thailand

3.97 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.1 mm

1.22 ct Octagon Cut Color-Change Diaspore, 9.1 x 4.1 mm From Turkey

0.99 carat Yellow Beryl, Pear Shape loose Beryl from Madagascar, Natural Untreated Gem, 8.9 x 5.9 mm

6.64 carat Pear Larimar, loose Certified Larimar from the Dominican Republic, Natural Untreated Gem, 19.3 x 10.8 mm

1.74 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 5.2 x 4.1 mm

9.21 ct Round Coral, 14.9 mm From Indonesia

0.74 ct Loose White Sapphire, 4.5 mm Diamond Cut From Madagascar

6.96 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.1 mm

6.97 ct Oval Coral, 15 x 12 mm From Indonesia

1.1 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6.1 x 4.2 mm

1.83 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 7.1 x 5.1 mm

1.22 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 5.1 mm

0.19 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm

12.25 ct Round Cut Smoky Quartz, 16.9 mm From Brazil

7.38 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 11.1 x 9 mm

1.07 ct Yellow Beryl, 8 x 6 mm Oval Cut From Madagascar

0.43 ct Loose Yellow Sapphire, 5.9 x 3.9 mm Oval Cut From Tanzania

0.5 carat Purple Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 6 x 4 mm

0.45 ct Loose Yellow Sapphire, 4.8 x 4.7 mm Heart Cut From Tanzania

2.04 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 8 x 6.1 mm

1.79 ct Orange Sunstone, 8.7 mm Round Cut From India

0.88 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.1 x 4.1 mm

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