90,000+Happy Customers
20+Years
WorldwideShipping
Cart
Free Report Included
Worldwide Shipping
30 Day Returns
Help Center Shipping Payment and Checkout Returns Certificates Contact Us
Home Calibrated Gemstones Octagon Shape 6x4 mm Gems

Buy Calibrated 6x4mm Octagon Shape Natural Gems at GemSelect

Octagon Shape 6x4 mm Gems Weight
Octagon Shape 6x4 mm Gems Size
Octagon Shape 6x4 mm Gems Clarity
Octagon Shape 6x4 mm Gems Price
Octagon Shape 6x4 mm Gems Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue
Brown
Golden
Gray
Green Octagon Shape 6x4 mm Gems
Multicolor
Orange Octagon Shape 6x4 mm Gems
Pink Octagon Shape 6x4 mm Gems
Purple Octagon Shape 6x4 mm Gems
Red Octagon Shape 6x4 mm Gems
Turquoise
Violet Octagon Shape 6x4 mm Gems
White
Yellow Octagon Shape 6x4 mm Gems
Single
Pairs
Lots
Faceted
Cabochons
Clear All

1.23ctw Yellow Sapphire, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 162.46

View Gem

0.62ct Violet Amethyst, Emerald Cut, VS-SI

6 x 4 mm (calibrated)

$ 3.60

View Gem

2.54ctw Red Pyrope Garnet, Emerald Cut, VVS-VS

6 x 4 mm (calibrated)

$ 17.71

View Gem

0.57ct Green Peridot, Emerald Cut, VVS-VS

6 x 4 mm (calibrated)

$ 8.52

View Gem

0.62ct Green Peridot, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 9.26

View Gem

0.68ct Violet Sapphire, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 88.11

View Gem

0.92ct Red Ruby, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 82.47

View Gem

0.52ct Violet Amethyst, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 3.02

View Gem

0.60ct Violet Amethyst, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 3.49

View Gem

0.69ct Purple Sapphire, Emerald Cut, VVS-VS

6 x 4 mm (calibrated)

$ 89.42

View Gem

0.55ct Yellow Color-Change Diaspore, Emerald Cut, VVS-VS

6 x 4 mm (calibrated)

$ 29.03

View Gem

0.77ct Red Ruby, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 69.02

View Gem

0.51ct Violet Amethyst, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 2.96

View Gem

0.73ct Green Emerald, Emerald Cut, SI

6 x 4 mm (calibrated)

$ 181.77

View Gem

0.50ct Violet Amethyst, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 2.91

View Gem

0.61ct Green Peridot, Emerald Cut, VVS-VS

6 x 4 mm (calibrated)

$ 9.11

View Gem

0.58ct Violet Amethyst, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 3.37

View Gem

0.51ct Violet Amethyst, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 2.96

View Gem

0.53ct Purple Sapphire, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 68.68

View Gem

1.14ctw Violet Amethyst, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 6.62

View Gem

0.94ct Red Ruby, Emerald Cut, VS

6 x 4 mm (calibrated)

$ 84.26

View Gem

0.60ct Purple Sapphire, Emerald Cut, VVS-VS

6 x 4 mm (calibrated)

$ 77.75

View Gem

0.57ct Purple Sapphire, Emerald Cut, VVS-VS

6 x 4 mm (calibrated)

$ 73.86

View Gem

0.82ct Pink Ruby, Emerald Cut, VS-SI

6 x 4 mm (calibrated)

$ 73.50

View Gem

Why Buy Octagon Shape 6x4 Mm Gems from GemSelect?

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Ita's a pretty good and simple way to find gems that youa're looking for amazing selection

Posted By Amman in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Found a rock that met my need. Bought it!

Posted By Skot in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Filters need to be improved but rest of website is great

Posted By Rock hound in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.

Posted By HVeeder in February, 2026
Source: Bizrate
Enlarged Gemstone Image