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
5.93ct Multicolor Pietersite, Pear Shape, Opaque

5.93ct Multicolor Pietersite, Pear Shape, Opaque

20.2 x 12.1 mm

$ 23.00

View Gem
6.11ct Brown Smoky Quartz, Flower Cut, Transparent

6.11ct Brown Smoky Quartz, Flower Cut, Transparent

14.1 x 10.2 mm

$ 22.69

View Gem
6.22ct Multicolor Quartz With Marcasite, Oval, Transparent

6.22ct Multicolor Quartz With Marcasite, Oval, Transparent

15 x 10 mm (calibrated)

$ 39.79

View Gem
5.91ct Purple Kunzite, Pear Shape, VVS-VS

5.91ct Purple Kunzite, Pear Shape, VVS-VS

12.9 x 8.4 mm

$ 147.16

View Gem
6.36ct Multicolor Rainbow Pyrite, Trillion, Opaque

6.36ct Multicolor Rainbow Pyrite, Trillion, Opaque

13 x 13 mm (calibrated)

$ 22.36

View Gem
6.61ct Multicolor Opal Triplet, Fancy, Opaque

6.61ct Multicolor Opal Triplet, Fancy, Opaque

24.8 x 10.1 mm

$ 164.59

View Gem
6.12ct Multicolor Dendritic Agate, Pear Shape, Translucent

6.12ct Multicolor Dendritic Agate, Pear Shape, Translucent

18 x 13 mm (calibrated)

$ 12.19

View Gem
6.64ct Blue Topaz, Briolette, VS
Topaz Product Video (487359)

6.64ct Blue Topaz, Briolette, VS

14.9 x 7.6 mm

$ 50.93

View Gem
6.39ct Violet Amethyst, Cushion, VVS-VS

6.39ct Violet Amethyst, Cushion, VVS-VS

15.1 x 9.3 mm

$ 31.82

View Gem
6.70ct Multicolor Mystic Quartz, Cushion, VVS

6.70ct Multicolor Mystic Quartz, Cushion, VVS

12 x 12 mm (calibrated)

$ 40.04

View Gem
6.42ct Red Star Ruby, Oval, Opaque

6.42ct Red Star Ruby, Oval, Opaque

11 x 9 mm (calibrated)

$ 296.48

View Gem
6.34ct Pink Rose Quartz, Emerald Cut, Transparent

6.34ct Pink Rose Quartz, Emerald Cut, Transparent

11.5 x 11.4 mm

$ 34.73

View Gem
6.61ct Green Fluorite, Oval, Transparent

6.61ct Green Fluorite, Oval, Transparent

12 x 9.3 mm

$ 27.19

View Gem
6.30ct Green Agate, Fancy, Translucent

6.30ct Green Agate, Fancy, Translucent

20.7 x 10.9 mm

$ 9.85

View Gem
6.38ct Brown Tiger'S Eye, Baguette, Opaque

6.38ct Brown Tiger'S Eye, Baguette, Opaque

12 x 10 mm (calibrated)

$ 6.36

View Gem
6.16ct Green Prehnite, Fancy, Translucent

6.16ct Green Prehnite, Fancy, Translucent

14.1 x 10.1 mm

$ 10.12

View Gem
5.82ct Violet Amethyst, Cushion, VVS

5.82ct Violet Amethyst, Cushion, VVS

15.2 x 9.3 mm

$ 34.78

View Gem
6.61ct Gray Star Sapphire, Oval, Opaque
Star Sapphire Product Video (470806)

6.61ct Gray Star Sapphire, Oval, Opaque

10 x 10 mm (calibrated)

$ 253.47

View Gem
12.64ctw Violet Amethyst, Oval, Transparent

12.64ctw Violet Amethyst, Oval, Transparent

13 x 9 mm (calibrated)

$ 69.24

View Gem
5.91ct Blue Topaz, Flower Cut, Transparent

5.91ct Blue Topaz, Flower Cut, Transparent

12 x 10 mm (calibrated)

$ 64.49

View Gem
6.27ct Green Prehnite, Fancy, Transparent

6.27ct Green Prehnite, Fancy, Transparent

16.9 x 11 mm

$ 10.23

View Gem
12.08ctw White Topaz, Cushion, VVS-VS

12.08ctw White Topaz, Cushion, VVS-VS

12 x 10 mm (calibrated)

$ 80.21

View Gem
13.21ctw Black Pietersite, Oval, Opaque

13.21ctw Black Pietersite, Oval, Opaque

14 x 10 mm (calibrated)

$ 57.88

View Gem
6.58ct Brown Moonstone, Oval, Translucent

6.58ct Brown Moonstone, Oval, Translucent

14 x 10 mm (calibrated)

$ 14.20

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

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very pleasant

Posted By Varun in June, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

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