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

Pleasant.

Posted By Mk in November, 2023

Source: Bizrate

Overall Rating -> 10

Very good customer service. I had an issue on my end with shipping and I received a response the next day!

Posted By Orphanboy in December, 2023

Source: Bizrate

Overall Rating -> 10

Great site

Posted By Lord of Bananas in November, 2023

Source: Bizrate

Overall Rating -> 10

The website is easy to search, the variety of gems is excellent and the educational information is interesting and helpful! Love browsing and shopping the GemSelect website!

Posted By Happiness in January, 2024

Source: Bizrate

Overall Rating -> 10

Todo muy bien en la compra ahora esperar recibir el pedido.

Posted By MAGSMX in August, 2023

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

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 -> 8

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

Posted By MI photo in May, 2023

Source: Bizrate

Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

Source: Bizrate

Overall Rating -> 10

Found what I was looking for

Posted By Rian in June, 2023

Source: Bizrate

Overall Rating -> 10

Easy to use.

Posted By Hope in March, 2024

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 -> 9

It went well

Posted By Rob in December, 2023

Source: Bizrate

Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024

Source: Bizrate

Overall Rating -> 10

Very Good

Posted By Julian in July, 2023

Source: Bizrate

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Gemstones A-Z

Buy Octagon / Emerald Cut Gems

0.74 ct Loose Yellow Sapphire, 5.2 mm Round Cut From Tanzania

11.62 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gems, 18.7 x 10.1 mm

0.32 ct Oval Cut Kornerupine, 5.2 x 3.8 mm From Sri Lanka

3.52 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gems, 7.1 x 7 mm

12.58 ct Oval Cut Pietersite, 19 x 12.2 mm From Namibia

1.24 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.4 x 5.2 mm

1.8 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 17.9 x 3.3 mm

3.17 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 8.1 mm

4.76 ct Yellow Quartz, 14.9 x 11 mm Carved From Brazil

2.01 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.3 x 6.2 mm

2.24 carat Blue Green Fluorite, Oval loose Fluorite from India, Natural Untreated Gem, 9.1 x 7 mm

1.82 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6 x 6.1 mm

65.48 ct Carved Rose Quartz, 39 x 21.7 mm From South Africa

2.53 ct Green Agate, 9.7 x 8.3 mm Oval Cut From India

2.41 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 5.4 x 4 mm

2.5 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.9 x 5 mm

5 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Sri Lanka, Natural Untreated Gems, 6.8 x 5 mm

0.83 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 10.6 x 3.8 mm

22.41 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 21.7 x 17.9 mm

0.86 carat Oval Peridot, loose Certified Peridot from China, Natural Untreated Gem, 7 x 4.9 mm

4.52 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 10 x 5 mm

10.59 carat Yellow Quartz, Pear Shape loose Quartz from Brazil, Natural Gem, 18.9 x 13.6 mm

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

1.63 carat Pink Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 8.2 x 6.1 mm

1.58 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.9 x 5.1 mm

0.64 ct Loose Oval Labradorite, 6.2 x 4.1 mm From Madagascar

11.88 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 17.8 x 12.9 mm

2.07 ct Cushion Cut Peridot, 7.6 x 7.4 mm From Myanmar

0.99 ct Marquise Cut Color-Change Diaspore, 10.2 x 4.1 mm From Turkey

4.12 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gem, 14.6 x 8.8 mm

2.12 carat Brown Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.7 x 7.2 mm

0.75 ct Green Sphene, 5.8 x 5.1 mm Oval Cut From Sri Lanka

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT