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 15 ct Gemstones

Buy Big 15 Carat Natural Gemstones

15 ct Gemstones Weight
15 ct Gemstones Size
15 ct Gemstones Clarity
15 ct Gemstones Price
15 ct Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color 15 ct Gemstones
Black 15 ct Gemstones
Blue 15 ct Gemstones
Brown 15 ct Gemstones
Golden
Gray 15 ct Gemstones
Green 15 ct Gemstones
Multicolor 15 ct Gemstones
Orange 15 ct Gemstones
Pink 15 ct Gemstones
Purple 15 ct Gemstones
Red 15 ct Gemstones
Turquoise 15 ct Gemstones
Violet 15 ct Gemstones
White 15 ct Gemstones
Yellow 15 ct Gemstones
Single
Pairs
Lots
Faceted
Cabochons
Clear All

15.29ct Multicolor Agate, Round, Opaque

15 mm (calibrated)

$ 12.18

View Gem

15.14ct White Rainbow Moonstone, Pear Shape, Translucent

22.8 x 17 mm

$ 105.56

View Gem

15.69ct Violet Amethyst, Flower Cut, Translucent

17.5 x 16.5 mm

$ 51.58

View Gem

15.17ct Multicolor Labradorite, Oval, Translucent

22.3 x 16.1 mm

$ 13.60

View Gem

15.40ct Blue Topaz, Fancy, Transparent

21.5 x 10.9 mm

$ 84.36

View Gem

15.12ct Violet Amethyst, Cushion, VVS

16 x 16 mm (calibrated)

$ 105.42

View Gem

15.03ct Green Maw-Sit-Sit, Oval, Opaque

15.6 x 13.3 mm

$ 49.40

View Gem

15.04ct Multicolor Psilomelane Dendrite, Oval, Opaque

25.3 x 16.8 mm

$ 12.13

View Gem

15.33ct Multicolor Jasper, Oval, Translucent

20 x 15 mm (calibrated)

$ 13.11

View Gem

15.99ct Multicolor Pietersite, Pear Shape, Opaque

26.3 x 17.4 mm

$ 38.55

View Gem

15.81ct Green Bloodstone, Oval, Opaque

16 x 12 mm (calibrated)

$ 31.49

View Gem

15.62ct Multicolor Ammolite, Fancy, Opaque

23 x 15.6 mm

$ 171.13

View Gem

15.77ct Brown Star Sunstone, Oval, Opaque

17.3 x 14 mm

$ 130.89

View Gem

15.67ct Multicolor Tiger'S Eye Matrix, Fancy, Opaque

22.4 x 14.3 mm

$ 7.02

View Gem

15.88ct Multicolor Pietersite, Oval, Opaque

20 x 15 mm (calibrated)

$ 59.95

View Gem

15.97ct Green Serpentine, Oval, Translucent

20.6 x 14.1 mm

$ 34.20

View Gem

15.40ct Violet Charoite, Cushion, Opaque

20.5 x 12.8 mm

$ 25.46

View Gem

15.30ct Multicolor Jasper, Oval, Opaque

20 x 15 mm (calibrated)

$ 25.15

View Gem

15.46ct Multicolor Rainbow Pyrite, Fancy, Opaque

23.7 x 15 mm

$ 46.20

View Gem

15.78ct Multicolor Jasper, Oval, Opaque

20 x 15 mm (calibrated)

$ 41.67

View Gem

15.32ct White Rainbow Moonstone, Oval, Transparent

22.9 x 14.4 mm

$ 122.07

View Gem

15.32ct Multicolor Pietersite, Round, Opaque

15 mm (calibrated)

$ 58.75

View Gem

15.08ct Green Opal, Oval, Opaque

17.1 x 15.8 mm

$ 32.29

View Gem

15.30ct White Dendritic Agate, Pear Shape, Opaque

23.5 x 19.7 mm

$ 10.67

View Gem

Why Buy 15 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

Enjoy every moment

Posted By Ferns in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 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 able to find what I wanted very easily!

Posted By Lenny in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate
Enlarged Gemstone Image