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  • Cubic Zirconia - Ice Flower Cut - Fancy Pink - Round

    $8.10 - $11.80

    $8.10
    Cubic Zirconia - Ice Flower Cut - Fancy Pink - Round
    Cubic Zirconia - Ice Flower Cut - Fancy Pink The ice flower cut CZ sparkles like no other stone with a center that looks like shattered glass or ice. The small facets on the pavilion of these stone...
  • Cubic Zirconia - Ice Flower Cut - Fancy Purple - Asscher

    $11.70 - $15.60

    $11.70
    Cubic Zirconia - Ice Flower Cut - Fancy Purple - Asscher
    Cubic Zirconia - Ice Flower Cut - Fancy Purple The ice flower cut CZ sparkles like no other stone with a center that looks like shattered glass or ice. The small facets on the pavilion of these sto...
  • Cubic Zirconia - Ice Flower Cut - Fancy Purple - Round

    $11.70 - $19.20

    $11.70
    Cubic Zirconia - Ice Flower Cut - Fancy Purple - Round
    Cubic Zirconia - Ice Flower Cut - Fancy Purple The ice flower cut CZ sparkles like no other stone with a center that looks like shattered glass or ice. The small facets on the pavilion of these sto...
  • Cubic Zirconia - Ice Flower Cut - Fancy Yellow - Asscher

    $8.10 - $10.80

    $8.10
    Cubic Zirconia - Ice Flower Cut - Fancy Yellow - Asscher
    Cubic Zirconia - Ice Flower Cut - Fancy Yellow The ice flower cut CZ sparkles like no other stone with a center that looks like shattered glass or ice. The small facets on the pavilion of these sto...
  • Cubic Zirconia - Ice Flower Cut - Fancy Yellow - Round

    $8.10 - $13.80

    $8.10
    Cubic Zirconia - Ice Flower Cut - Fancy Yellow - Round
    Cubic Zirconia - Ice Flower Cut - Fancy Yellow The ice flower cut CZ sparkles like no other stone with a center that looks like shattered glass or ice. The small facets on the pavilion of these sto...
  • Cubic Zirconia - Ice Flower Cut - Padparadscha - Asscher

    $8.10 - $10.80

    $8.10
    Cubic Zirconia - Ice Flower Cut - Padparadscha - Asscher
    Cubic Zirconia - Ice Flower Cut - Padparadscha The ice flower cut CZ sparkles like no other stone with a center that looks like shattered glass or ice. The small facets on the pavilion of these sto...
  • Cubic Zirconia - Ice Flower Cut - Padparadscha - Round

    $8.10 - $13.80

    $8.10
    Cubic Zirconia - Ice Flower Cut - Padparadscha - Round
    Cubic Zirconia - Ice Flower Cut - Padparadscha The ice flower cut CZ sparkles like no other stone with a center that looks like shattered glass or ice. The small facets on the pavilion of these sto...
  • Cubic Zirconia - Jet Black - Barrel
    Sale

    $4.00 - $7.20

    $5.00
    $4.00
    Cubic Zirconia - Jet Black - Barrel
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Barrel - Checkerboard
    Sale

    $3.00 - $3.00

    $6.00
    $3.00
    Cubic Zirconia - Jet Black - Barrel - Checkerboard
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Cabochon Round - Checkerboard
    Sale

    $4.00 - $7.00

    $5.50
    $4.00
    Cubic Zirconia - Jet Black - Cabochon Round - Checkerboard
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Cushion
    Sale

    $5.00 - $5.00

    $6.00
    $5.00
    Cubic Zirconia - Jet Black - Cushion
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Cushion - Checkerboard
    Sale

    $3.80 - $5.00

    $6.00
    $3.80
    Cubic Zirconia - Jet Black - Cushion - Checkerboard
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Oval - Checkerboard
    Sale

    $4.80 - $7.20

    $6.00
    $4.80
    Cubic Zirconia - Jet Black - Oval - Checkerboard
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Pear

    $4.00 - $6.00

    $4.00
    Cubic Zirconia - Jet Black - Pear
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Round

    $4.00 - $5.50

    $4.00
    Cubic Zirconia - Jet Black - Round
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Square

    $2.50 - $4.00

    $2.50
    Cubic Zirconia - Jet Black - Square
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Jet Black - Trillion
    Sale

    $4.00 - $4.00

    $5.00
    $4.00
    Cubic Zirconia - Jet Black - Trillion
    Cubic Zirconia - Jet Black 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 embe...
  • Cubic Zirconia - Lavender - Barrel

    $5.00 - $8.00

    $5.00
    Cubic Zirconia - Lavender - Barrel
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Barrel - Checkerboard

    $4.00 - $7.00

    $4.00
    Cubic Zirconia - Lavender - Barrel - Checkerboard
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Cabochon Round - Checkerboard
    Sale

    $4.00 - $7.00

    $5.50
    $4.00
    Cubic Zirconia - Lavender - Cabochon Round - Checkerboard
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Cushion

    $5.00 - $6.00

    $5.00
    Cubic Zirconia - Lavender - Cushion
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Cushion - Checkerboard
    Sale

    $4.00 - $6.00

    $5.50
    $4.00
    Cubic Zirconia - Lavender - Cushion - Checkerboard
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Diamond 9mm x 13mm

    $4.00

    $4.00
    Cubic Zirconia - Lavender - Diamond 9mm x 13mm - Pkg/1
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Marquise

    $4.00 - $7.00

    $4.00
    Cubic Zirconia - Lavender - Marquise
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Oval - Checkerboard
    Sale

    $4.00 - $9.00

    $7.00
    $4.00
    Cubic Zirconia - Lavender - Oval - Checkerboard
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Pear
    Sale

    $3.20 - $9.00

    $4.00
    $3.20
    Cubic Zirconia - Lavender - Pear
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Round

    $4.00 - $7.00

    $4.00
    Cubic Zirconia - Lavender - Round
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Square

    $3.50 - $5.50

    $3.50
    Cubic Zirconia - Lavender - Square
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Triangle
    Sale

    $3.20 - $4.00

    $4.00
    $3.20
    Cubic Zirconia - Lavender - Triangle
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Lavender - Trillion

    $4.00 - $5.50

    $4.00
    Cubic Zirconia - Lavender - Trillion
    Cubic Zirconia - Lavender 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...
  • Cubic Zirconia - Olivine - Barrel

    $5.00 - $7.00

    $5.00
    Cubic Zirconia - Olivine - Barrel
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Cabochon Round - Checkerboard

    $4.00 - $7.50

    $4.00
    Cubic Zirconia - Olivine - Cabochon Round - Checkerboard
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Cushion

    $5.00 - $6.00

    $5.00
    Cubic Zirconia - Olivine - Cushion
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Cushion - Checkerboard
    Sale

    $4.80 - $6.50

    $6.00
    $4.80
    Cubic Zirconia - Olivine - Cushion - Checkerboard
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Marquise
    Sale

    $4.80 - $6.00

    $6.00
    $4.80
    Cubic Zirconia - Olivine - Marquise
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Oval - Checkerboard
    Sale

    $4.00 - $9.00

    $5.00
    $4.00
    Cubic Zirconia - Olivine - Oval - Checkerboard
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Pear
    Sale

    $4.00 - $7.20

    $5.00
    $4.00
    Cubic Zirconia - Olivine - Pear
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Round
    Sale

    $4.00 - $7.00

    $6.00
    $4.00
    Cubic Zirconia - Olivine - Round
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Square
    Sale

    $4.00 - $4.80

    $5.00
    $4.00
    Cubic Zirconia - Olivine - Square
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Triangle
    Sale

    $4.00 - $4.50

    $5.00
    $4.00
    Cubic Zirconia - Olivine - Triangle
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Olivine - Trillion
    Sale

    $3.60 - $6.00

    $4.50
    $3.60
    Cubic Zirconia - Olivine - Trillion
    Cubic Zirconia - Olivine 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 ...
  • Cubic Zirconia - Pink Sapphire - Barrel
    Sale

    $4.00 - $7.20

    $5.00
    $4.00
    Cubic Zirconia - Pink Sapphire - Barrel
    Cubic Zirconia - Pink Sapphire 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 ...
  • Cubic Zirconia - Pink Sapphire - Barrel - Checkerboard
    Sale

    $4.60 - $7.00

    $5.50
    $4.60
    Cubic Zirconia - Pink Sapphire - Barrel - Checkerboard
    Cubic Zirconia - Pink Sapphire 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 ...
  • Cubic Zirconia - Pink Sapphire - Cabochon Round - Checkerboard
    Sale

    $4.00 - $7.50

    $5.00
    $4.00
    Cubic Zirconia - Pink Sapphire - Cabochon Round - Checkerboard
    Cubic Zirconia - Pink Sapphire 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 ...
  • Cubic Zirconia - Pink Sapphire - Cushion

    $5.50 - $6.50

    $5.50
    Cubic Zirconia - Pink Sapphire - Cushion
    Cubic Zirconia - Pink Sapphire 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 ...
  • Cubic Zirconia - Pink Sapphire - Cushion - Checkerboard

    $5.00 - $7.00

    $5.00
    Cubic Zirconia - Pink Sapphire - Cushion - Checkerboard
    Cubic Zirconia - Pink Sapphire 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 ...
  • Cubic Zirconia - Pink Sapphire - Diamond 9mm x 13mm

    $4.00

    $4.00
    Cubic Zirconia - Pink Sapphire - Diamond 9mm x 13mm - Pkg/1
    Cubic Zirconia - Pink Sapphire 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 ...
  • Cubic Zirconia - Pink Sapphire - Marquise
    Sale

    $4.00 - $6.00

    $5.00
    $4.00
    Cubic Zirconia - Pink Sapphire - Marquise
    Cubic Zirconia - Pink Sapphire 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 ...
  • Cubic Zirconia - Pink Sapphire - Oval - Checkerboard
    Sale

    $3.60 - $7.20

    $4.50
    $3.60
    Cubic Zirconia - Pink Sapphire - Oval - Checkerboard
    Cubic Zirconia - Pink Sapphire 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 ...
  • Cubic Zirconia - Pink Sapphire - Pear
    Sale

    $4.00 - $7.20

    $5.00
    $4.00
    Cubic Zirconia - Pink Sapphire - Pear
    Cubic Zirconia - Pink Sapphire 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 ...

Showing 101 -150 of 204 items

Cubic Zirconia

Many of our Cubic Zirconia Gemstones are kiln-safe, making them an excellent choice to add beautiful color and bling to your jewelry creations. Whether you are working in metal clay or using traditional fabrication or casting methods, we’ve got the stones you want at prices you can afford. Find a rainbow of sparkling Cubic Zirconia like Amethyst, Emerald, Garnet, Pink Sapphire, White Diamond, Fire Opal and others. We offer the widest selection of custom-cut CZ gemstones from small to large sizes 1.75mm to 16mm.

For firing temperatures and times on a variety of gemstones, refer to our Gemstone Firing Guide:

Click here to download a PDF version of our Gemstone Firing Guide.

Why buy cubic zirconia?

Using cubic zirconia in your jewelry artistry has many advantages.... among the highest is the relatively low cost for an increased value applied to your jewelry art.
Cubic zirconia is a relatively hard man-made gem, rating around 8 on the Mohs scale. A Diamond has a rating of 10 (the hardest) and graphite with a rating of 1-2. How does this relate to you, the jewelry artist? With a relatively high level of hardness, cubic zirconia gemstones are extremely suitable and appropriate for jewelry that may take some everyday abuse, such as rings or bracelets. >
To the naked eye, Cubic Zirconia will be flawless every time. Should your jewelry art ever need a replacement stone, cubic zirconia, a very cost effective alternative to diamonds or sapphires, will retain the look and feel of the previous stone. No need to redesign your jewelry's attitude to fit the stone. Let the stone fit the jewelry.
Cubic zirconia has a relatively high refraction quality. This will vary from color to color. The refraction rate for zirconia is 2.15 – 2.18, in comparison, a diamond has a refraction rate of 2.417. What does this tell you? Each and every CZ you purchase from Cool Tools has a strong ‘fire’ or sparkle adding beauty to your jewelry.
We have a wide selection of pre-made ring settings and bezel templates to make your own settings in metal clay.