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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

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For Example: 8-9
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15.06ct Red Ruby, Oval, VS

14 x 12 mm (calibrated)

$ 1,499.98

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15.14ct Yellow Quartz, Cushion, VS

16 x 16 mm (calibrated)

$ 58.38

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15.32ct Violet Amethyst, Emerald Cut, VVS-VS

18 x 13 mm (calibrated)

$ 106.81

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15.59ct Pink Rose Quartz, Oval, Transparent

18 x 13 mm (calibrated)

$ 20.83

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15.95ct Yellow Citrine, Trillion, VVS

18 x 18 mm (calibrated)

$ 132.39

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15.43ct Blue Topaz, Pear Shape, VVS-VS

20.6 x 11.3 mm

$ 101.43

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15.24ct Green Maw-Sit-Sit, Oval, Opaque

16 x 12 mm (calibrated)

$ 50.09

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15.04ct Blue Color-Change Fluorite, Round, VS

15 mm (calibrated)

$ 411.95

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15.84ct Blue Topaz, Oval, VVS

18 x 13 mm (calibrated)

$ 110.44

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15.61ct Multicolor Agate, Fancy, Opaque

16.7 x 9.6 mm

$ 27.34

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15.65ct Turquoise Chrysocolla, Oval, Opaque

21.4 x 15.5 mm

$ 22.21

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15.58ct Violet Charoite, Fancy, Opaque

22.7 x 16.6 mm

$ 25.75

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15.23ct Multicolor Jasper, Cushion, Opaque

23.8 x 14.1 mm

$ 12.59

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15.68ct Black Obsidian, Trillion, Opaque

25 x 21 mm

$ 25.76

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15.86ct Multicolor Ammolite, Fancy, Opaque

25.7 x 16.9 mm

$ 347.52

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15.53ct Blue Lapis Lazuli, Oval, Opaque

16.7 x 12.8 mm

$ 22.17

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15.88ct Multicolor Rainbow Pyrite, Fancy, Opaque

22.9 x 20.4 mm

$ 41.13

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15.85ct Green Aventurine, Oval, Translucent

24.7 x 14.1 mm

$ 15.79

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15.82ct Multicolor Opal, Oval, Transparent

22.4 x 17.6 mm

$ 393.92

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15.62ct Purple Star Ruby, Oval, Opaque

14.9 x 12.4 mm

$ 186.69

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15.17ct White Rainbow Moonstone, Baguette, Transparent

23.8 x 10.7 mm

$ 120.87

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15.90ct White Howlite, Pear Shape, Opaque

23.9 x 17.1 mm

$ 7.60

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15.85ct Blue Topaz, Emerald Cut, VS

16 x 12 mm (calibrated)

$ 158.50

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15.66ct Green Opal, Oval, Opaque

20 x 15 mm (calibrated)

$ 33.53

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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

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love Gem Select. I always know the quality and accuracy of information and photos are top notch. Highly recommend!

Posted By Matthew K. in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

This is the first time I have used this site. I was dissatisfied with the quality of gems and supplies elsewhere and decided to try GemSelect. They are awesome! I was thrilled to see the variety and the great web performance. There was the ability to search for information as well as gems. Things like the clarity rating system and caret weight of the gems. I have always loved making things and I have just started to make jewelry as a business. However I have never made a ring before and have always wanted to. On GemSelect I was able to find good quality gems to use in my creations. I am so glad the website is so easy to use. Thank you GemSelect.

Posted By PickyShopper in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 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

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate
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