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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

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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
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15.20ct Yellow Quartz, Flower Cut, Transparent

20.3 x 15.7 mm

$ 66.78

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15.41ct Multicolor Boulder Opal, Oval, Opaque

20 x 15 mm (calibrated)

$ 76.74

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15.81ct Pink Rose Quartz, Oval, Transparent/Translucent

16.3 x 14.9 mm

$ 22.52

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15.06ct Multicolor Jasper, Oval, Opaque

26.1 x 16.5 mm

$ 12.45

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15.33ct Yellow Rutile Quartz, Pear Shape, Transparent

19.1 x 15.8 mm

$ 57.10

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15.17ct Blue Topaz, Flower Cut, Transparent

18.3 x 13.8 mm

$ 99.72

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15.85ct Turquoise Larimar, Oval, Opaque

20 x 15 mm (calibrated)

$ 189.25

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15.39ct Red Ruby, Pear Shape, VS

18 x 13 mm (calibrated)

$ 1,532.84

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15.11ct Black Nuummite, Oval, Opaque

18 x 13 mm (calibrated)

$ 66.67

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15.35ct Pink Rose Quartz, Oval, Transparent/Translucent

16.8 x 13.8 mm

$ 21.87

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15.19ct White Mother Of Pearl, Flower Cut, Opaque

24 x 15.7 mm

$ 49.93

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15.28ct Black Tourmaline, Emerald Cut, Opaque

15.9 x 13.7 mm

$ 76.09

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15.92ct Pink Kunzite, Trillion, VS

18 x 13 mm (calibrated)

$ 317.13

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15.75ct Multicolor Jasper, Oval, Opaque

31.7 x 14.2 mm

$ 25.88

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15.20ct Black Obsidian, Pear Shape, Opaque

24.3 x 14.3 mm

$ 16.65

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15.59ct Multicolor Ammolite, Fancy, Opaque

19.1 x 16.1 mm

$ 155.28

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15.52ct Green Maw-Sit-Sit, Round, Opaque

14 mm (calibrated)

$ 51.01

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15.10ct Multicolor Agate, Fancy, Opaque

15 x 10 mm (calibrated)

$ 26.44

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15.24ct Multicolor Cinnabar, Oval, Opaque

24.7 x 15.8 mm

$ 17.84

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15.20ct Multicolor Jasper, Oval, Opaque

22.1 x 16.1 mm

$ 33.31

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15.48ct Black Star Sapphire, Oval, Opaque

13.9 x 13.4 mm

$ 200.44

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15.15ct Red Ruby, Oval, Translucent

16.7 x 13.7 mm

$ 392.32

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15.55ct Pink Kunzite, Emerald Cut, VS

16 x 12 mm (calibrated)

$ 387.20

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15.66ct Multicolor Boulder Opal, Oval, Opaque

18.4 x 14.5 mm

$ 77.99

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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

Great website, easy to navigate, and loads quickly. Have bought here before, very pleased!

Posted By SallyO in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I've been looking for.

Posted By Tree Dog in April, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

overall great

Posted By SR in April, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.

Posted By Atsu in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate
Enlarged Gemstone Image