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 › Gemstones › Gemstones By Weight › 6 ct Gemstones

Buy Natural 6 Carat Loose Gemstones

6 ct Gemstones Weight
6 ct Gemstones Size
6 ct Gemstones Clarity
6 ct Gemstones Price
6 ct Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color 6 ct Gemstones
Black 6 ct Gemstones
Blue 6 ct Gemstones
Brown 6 ct Gemstones
Golden 6 ct Gemstones
Gray 6 ct Gemstones
Green 6 ct Gemstones
Multicolor 6 ct Gemstones
Orange 6 ct Gemstones
Pink 6 ct Gemstones
Purple 6 ct Gemstones
Red 6 ct Gemstones
Turquoise 6 ct Gemstones
Violet 6 ct Gemstones
White 6 ct Gemstones
Yellow 6 ct Gemstones
Single
Pairs
Lots
Faceted
Cabochons
Clear All
6.70ct Multicolor Fire Agate, Fancy, Opaque

6.70ct Multicolor Fire Agate, Fancy, Opaque

12.9 x 10.9 mm

$ 51.51

View Gem
12.29ctw Black Spinel, Round, Opaque

12.29ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 38.24

View Gem
6.56ct Brown Smoky Quartz, Flower Cut, Transparent

6.56ct Brown Smoky Quartz, Flower Cut, Transparent

14.1 x 10.1 mm

$ 24.36

View Gem
6.33ct Multicolor Ammolite, Trillion, Opaque

6.33ct Multicolor Ammolite, Trillion, Opaque

18.6 x 10.8 mm

$ 126.09

View Gem
13.07ctw Brown Smoky Quartz, Pear Shape, VVS-VS

13.07ctw Brown Smoky Quartz, Pear Shape, VVS-VS

15.1 x 11 mm

$ 21.48

View Gem
6.16ct Yellow Citrine, Round, VVS

6.16ct Yellow Citrine, Round, VVS

12 mm (calibrated)

$ 47.24

View Gem
13.12ctw Black Spinel, Heart, Opaque

13.12ctw Black Spinel, Heart, Opaque

12 x 12 mm (calibrated)

$ 71.87

View Gem
6.25ct Multicolor Labradorite, Round, Translucent

6.25ct Multicolor Labradorite, Round, Translucent

11 mm (calibrated)

$ 13.45

View Gem
6.26ct Violet Amethyst, Oval, Transparent

6.26ct Violet Amethyst, Oval, Transparent

15.2 x 10.6 mm

$ 31.17

View Gem
6.60ct Yellow Quartz, Round, VVS

6.60ct Yellow Quartz, Round, VVS

12 mm (calibrated)

$ 36.15

View Gem
6.65ct Multicolor Fire Agate, Oval, Opaque

6.65ct Multicolor Fire Agate, Oval, Opaque

14 x 12 mm (calibrated)

$ 51.59

View Gem
5.76ct Multicolor Black Opal, Oval, Translucent

5.76ct Multicolor Black Opal, Oval, Translucent

15.4 x 11.9 mm

$ 143.42

View Gem
6.80ct Blue Topaz, Flower Cut, Transparent

6.80ct Blue Topaz, Flower Cut, Transparent

15 x 11.9 mm

$ 74.20

View Gem
6.45ct Yellow Quartz, Trillion, Transparent

6.45ct Yellow Quartz, Trillion, Transparent

13 x 13 mm (calibrated)

$ 17.31

View Gem
6.65ct Multicolor Mystic Quartz, Cushion, VVS-VS

6.65ct Multicolor Mystic Quartz, Cushion, VVS-VS

12 x 12 mm (calibrated)

$ 39.74

View Gem
6.41ct Violet Amethyst, Pear Shape, VS

6.41ct Violet Amethyst, Pear Shape, VS

16 x 12 mm (calibrated)

$ 44.69

View Gem
6.03ct White Topaz, Cushion, VS

6.03ct White Topaz, Cushion, VS

12 x 10 mm (calibrated)

$ 40.04

View Gem
6.34ct Violet Amethyst, Pear Shape, VVS-VS

6.34ct Violet Amethyst, Pear Shape, VVS-VS

15 x 10 mm (calibrated)

$ 43.82

View Gem
6.74ct Violet Chalcedony, Square, Translucent

6.74ct Violet Chalcedony, Square, Translucent

12 x 12 mm (calibrated)

$ 25.18

View Gem
6.58ct Green Tourmaline, Cushion, VVS
Tourmaline Product Video (446504)

6.58ct Green Tourmaline, Cushion, VVS

10.4 x 10.1 mm

$ 917.52

View Gem
6.05ct Violet Amethyst, Oval, Transparent

6.05ct Violet Amethyst, Oval, Transparent

13.5 x 9.8 mm

$ 33.15

View Gem
6.67ct Green Chrysoprase, Oval, Translucent

6.67ct Green Chrysoprase, Oval, Translucent

13.7 x 11.2 mm

$ 55.36

View Gem
13.10ctw Brown Smoky Quartz, Pear Shape, VVS

13.10ctw Brown Smoky Quartz, Pear Shape, VVS

15.2 x 11.1 mm

$ 43.06

View Gem
13.11ctw Green Prehnite, Fancy, Transparent

13.11ctw Green Prehnite, Fancy, Transparent

17 x 11.1 mm

$ 21.40

View Gem

Why Buy 6 Ct Gemstones 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

My whole experience is great.

Posted By Ghs in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

Posted By Kelly in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

Posted By Maggie in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The website was very easy to use.

Posted By Garnet in January, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
Enlarged Gemstone Image