Excellent Quality CZ’s
"They are very brilliant stones with a lot of sparkle to them. The color matched many pieces of my jewelry. I recommend them highly! I’m sorry the photo doesn’t do more to highlight the color of these stones!"
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SKU:CZF-200.5
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Made in China
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Rated AAA, our lab created cubic zirconias are beautiful as precious gemstones. Our high quality, calibrated CZs are precision cut and perfect for any setting, or to embed directly into metal clay. The Smoked Topaz CZ features deep color saturation and brilliance sure to catch the eye.
Available in a variety of shapes, sizes and colors, get the sparkle and shine of precious gemstones with these beautiful, affordable stones.
Stable at all metal clay temperatures. May darken slightly at 2 hours. Hardness: Cubic zirconia has a rating of approximately 8.5 on Mohs hardness scale vs. a rating of 10 for diamond.
Ring shown was created by Alexander Kraft using Cool Tools Cubic Zirconia and EZ960® Sterling Silver Clay. Stones include: Champagne Barrel Checkerboard, Amethyst Cushion Checkerboard and White Diamond Cushion Checkerboard.

Overall rating: 4.6923075 / 5 from 13 reviews.
Review topics: ["quality","look","stones"].
"They are very brilliant stones with a lot of sparkle to them. The color matched many pieces of my jewelry. I recommend them highly! I’m sorry the photo doesn’t do more to highlight the color of these stones!"
— Paul S. (5/5)
"Cool Tools never disappoint. Lovely richness and depth to this stone, and it fires beautifully."
— Lynn S. (5/5)
"This cut seems to have more refraction of light; thus more sparkle than the other cuts of Smoked Topaz. I think the round shape is my favorite for this reason."
— Karen H. (5/5)
"Happy with quality, true to size."
— Cinbklyn (5/5)
"I love all the products I buy from cool tools!"
— Tracy M. (5/5)
"The Smoked Topaz looks great in silver but alas loses its color when set in FastFire Bronze and fired in charcoal at 1525 with an hour hold. A really big disappointment since I thought it would look great and the gem firing guide states it will withstand this temperature and more. I tried the stone in charcoal without setting it and the same thing happened. The topaz lost its color but the red CZ looked fine."
— Marie H. (4/5)
"The Cubic Zirconia stones are great. Good to work with and shine like no other. The cabochons work so well with all that I am doing."
— Vikki R. (5/5)
"just i expected - beautiful - can't wait for customers to see them."
— Sue S. (5/5)
"Cute stones, look great in person"
— Kendra C. (5/5)
"Prompt service, high quality product. Thank you for your attention to detail. JCM"
— Jcm (5/5)
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