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  • Cubic Zirconia - Alexandrite - Barrel
    Sale
    Regular price

    $4.00 - $7.00

    Regular price
    $6.00
    Sale price
    $4.00
    Cubic Zirconia - Alexandrite - Barrel
    Cubic Zirconia - Alexandrite 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 em...
  • Cubic Zirconia - Alexandrite - Barrel - Checkerboard
    Sale
    Regular price

    $4.00 - $4.80

    Regular price
    $5.00
    Sale price
    $4.00
    Cubic Zirconia - Alexandrite - Barrel - Checkerboard
    Cubic Zirconia - Alexandrite 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 em...
  • Cubic Zirconia - Alexandrite - Cabochon Round - Checkerboard
    Sale
    Regular price

    $4.00 - $8.00

    Regular price
    $6.00
    Sale price
    $4.00
    Cubic Zirconia - Alexandrite - Cabochon Round - Checkerboard
    Cubic Zirconia - Alexandrite 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 em...
  • Regular price

    $5.00 - $6.00

    Regular price
    Sale price
    $5.00
    Cubic Zirconia - Alexandrite - Cushion - Checkerboard
    Cubic Zirconia - Alexandrite 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 em...
  • Cubic Zirconia - Alexandrite - Oval - Checkerboard
    Sale
    Regular price

    $5.00 - $7.00

    Regular price
    $8.00
    Sale price
    $5.00
    Cubic Zirconia - Alexandrite - Oval - Checkerboard
    Cubic Zirconia - Alexandrite 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 em...
  • Regular price

    $4.00 - $5.50

    Regular price
    Sale price
    $4.00
    Cubic Zirconia - Alexandrite - Pear
    Cubic Zirconia - Alexandrite 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 em...
  • Regular price

    $4.00 - $4.50

    Regular price
    Sale price
    $4.00
    Cubic Zirconia - Alexandrite - Round
    Cubic Zirconia - Alexandrite 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 em...
  • Regular price

    $2.50 - $3.75

    Regular price
    Sale price
    $2.50
    Cubic Zirconia - Alexandrite - Square
    Cubic Zirconia - Alexandrite 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 em...
  • Regular price

    $5.00 - $5.00

    Regular price
    Sale price
    $5.00
    Cubic Zirconia - Alexandrite - Trillion
    Cubic Zirconia - Alexandrite 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 em...
  • Cubic Zirconia - Amethyst - Barrel
    Sale
    Regular price

    $4.00 - $6.00

    Regular price
    $5.50
    Sale price
    $4.00
    Cubic Zirconia - Amethyst - Barrel
    Cubic Zirconia - Amethyst 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 - Amethyst - Barrel - Checkerboard
    Sale
    Regular price

    $4.00 - $5.60

    Regular price
    $5.00
    Sale price
    $4.00
    Cubic Zirconia - Amethyst - Barrel - Checkerboard
    Cubic Zirconia - Amethyst 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...
  • Regular price

    $3.00 - $8.00

    Regular price
    Sale price
    $3.00
    Cubic Zirconia - Amethyst - Cabochon Round - Checkerboard
    Cubic Zirconia - Amethyst 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 - Amethyst - Cushion
    Sale
    Regular price

    $5.60 - $6.00

    Regular price
    $7.00
    Sale price
    $5.60
    Cubic Zirconia - Amethyst - Cushion
    Cubic Zirconia - Amethyst 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 - Amethyst - Cushion - Checkerboard
    Sale
    Regular price

    $4.00 - $5.20

    Regular price
    $5.00
    Sale price
    $4.00
    Cubic Zirconia - Amethyst - Cushion - Checkerboard
    Cubic Zirconia - Amethyst 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...
  • Regular price

    $6.70

    Regular price
    Sale price
    $6.70
    Cubic Zirconia - Amethyst - Diamond 9mm x 13mm Pkg/1
    Cubic Zirconia - Amethyst 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...
  • Regular price

    $6.00 - $8.00

    Regular price
    Sale price
    $6.00
    Cubic Zirconia - Amethyst - Marquise
    Cubic Zirconia - Amethyst 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...
  • Regular price

    $4.00 - $8.50

    Regular price
    $0.00
    Sale price
    $4.00
    Cubic Zirconia - Amethyst - Oval - Checkerboard
    Cubic Zirconia - Amethyst 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 - Amethyst - Pear
    Sale
    Regular price

    $4.00 - $6.40

    Regular price
    $6.00
    Sale price
    $4.00
    Cubic Zirconia - Amethyst - Pear
    Cubic Zirconia - Amethyst 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...
  • Regular price

    $4.00 - $9.00

    Regular price
    Sale price
    $4.00
    Cubic Zirconia - Amethyst - Round
    Cubic Zirconia - Amethyst 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...
  • Regular price

    $4.00 - $6.00

    Regular price
    Sale price
    $4.00
    Cubic Zirconia - Amethyst - Square
    Cubic Zirconia - Amethyst 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...
  • Regular price

    $4.00 - $7.00

    Regular price
    Sale price
    $4.00
    Cubic Zirconia - Amethyst - Triangle
    Cubic Zirconia - Amethyst 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 - Amethyst - Trillion
    Sale
    Regular price

    $4.40 - $5.60

    Regular price
    $5.50
    Sale price
    $4.40
    Cubic Zirconia - Amethyst - Trillion
    Cubic Zirconia - Amethyst 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...
  • Regular price

    $6.00 - $22.00

    Regular price
    Sale price
    $6.00
    Cubic Zirconia - Blue Topaz - Barrel
    Cubic Zirconia - Blue Topaz 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 emb...
  • Regular price

    $7.00

    Regular price
    Sale price
    $7.00
    Cubic Zirconia - Blue Topaz - Barrel - Checkerboard 13mm x 8mm - Pkg/1
    Cubic Zirconia - Blue Topaz 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 emb...
  • Regular price

    $6.00 - $13.00

    Regular price
    Sale price
    $6.00
    Cubic Zirconia - Blue Topaz - Cabochon Round - Checkerboard
    Cubic Zirconia - Blue Topaz 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 emb...
  • Regular price

    $6.00 - $16.00

    Regular price
    Sale price
    $6.00
    Cubic Zirconia - Blue Topaz - Cushion - Checkerboard
    Cubic Zirconia - Blue Topaz 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 emb...
  • Cubic Zirconia - Blue Topaz - Marquise
    Sale
    Regular price

    $5.60 - $14.00

    Regular price
    $7.00
    Sale price
    $5.60
    Cubic Zirconia - Blue Topaz - Marquise
    Cubic Zirconia - Blue Topaz 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 emb...
  • Cubic Zirconia - Blue Topaz - Oval - Checkerboard
    Sale
    Regular price

    $5.60 - $15.20

    Regular price
    $7.00
    Sale price
    $5.60
    Cubic Zirconia - Blue Topaz - Oval - Checkerboard
    Cubic Zirconia - Blue Topaz 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 emb...
  • Cubic Zirconia - Blue Topaz - Pear
    Sale
    Regular price

    $9.00 - $22.00

    Regular price
    $12.00
    Sale price
    $9.00
    Cubic Zirconia - Blue Topaz - Pear
    Cubic Zirconia - Blue Topaz 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 emb...
  • Cubic Zirconia - Blue Topaz - Round
    Sale
    Regular price

    $4.80 - $16.80

    Regular price
    $6.00
    Sale price
    $4.80
    Cubic Zirconia - Blue Topaz - Round
    Cubic Zirconia - Blue Topaz 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 emb...
  • Cubic Zirconia - Blue Topaz - Square
    Sale
    Regular price

    $7.00 - $15.20

    Regular price
    $12.00
    Sale price
    $7.00
    Cubic Zirconia - Blue Topaz - Square
    Cubic Zirconia - Blue Topaz 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 emb...
  • Regular price

    $5.00 - $11.00

    Regular price
    Sale price
    $5.00
    Cubic Zirconia - Blue Topaz - Triangle
    Cubic Zirconia - Blue Topaz 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 emb...
  • Regular price

    $5.00 - $19.00

    Regular price
    Sale price
    $5.00
    Cubic Zirconia - Blue Topaz - Trillion
    Cubic Zirconia - Blue Topaz 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 emb...
  • Regular price

    $5.00 - $9.00

    Regular price
    Sale price
    $5.00
    Cubic Zirconia - Champagne - Barrel
    Cubic Zirconia - Champagne 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 - Champagne - Barrel - Checkerboard
    Sale
    Regular price

    $3.50 - $8.00

    Regular price
    $4.00
    Sale price
    $3.50
    Cubic Zirconia - Champagne - Barrel - Checkerboard
    Cubic Zirconia - Champagne 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...
  • Regular price

    $4.00 - $8.00

    Regular price
    Sale price
    $4.00
    Cubic Zirconia - Champagne - Cabochon Round - Checkerboard
    Cubic Zirconia - Champagne 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...
  • Regular price

    $5.00 - $6.00

    Regular price
    Sale price
    $5.00
    Cubic Zirconia - Champagne - Cushion
    Cubic Zirconia - Champagne 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 - Champagne - Cushion - Checkerboard
    Sale
    Regular price

    $4.00 - $6.00

    Regular price
    $6.50
    Sale price
    $4.00
    Cubic Zirconia - Champagne - Cushion - Checkerboard
    Cubic Zirconia - Champagne 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 - Champagne - Diamond 9mm X 13mm
    Sale
    Regular price

    $3.00

    Regular price
    $4.00
    Sale price
    $3.00
    Cubic Zirconia - Champagne - Diamond 9mm X 13mm Pkg/1
    Cubic Zirconia - Champagne 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 - Champagne - Marquise
    Sale
    Regular price

    $4.00 - $8.00

    Regular price
    $5.00
    Sale price
    $4.00
    Cubic Zirconia - Champagne - Marquise
    Cubic Zirconia - Champagne 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 - Champagne - Oval - Checkerboard
    Sale
    Regular price

    $4.40 - $9.50

    Regular price
    $5.50
    Sale price
    $4.40
    Cubic Zirconia - Champagne - Oval - Checkerboard
    Cubic Zirconia - Champagne 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...
  • Regular price

    $3.50 - $9.00

    Regular price
    Sale price
    $3.50
    Cubic Zirconia - Champagne - Pear
    Cubic Zirconia - Champagne 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 - Champagne - Round
    Sale
    Regular price

    $3.75 - $7.20

    Regular price
    $4.50
    Sale price
    $3.75
    Cubic Zirconia - Champagne - Round
    Cubic Zirconia - Champagne 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...
  • Regular price

    $3.50 - $6.00

    Regular price
    Sale price
    $3.50
    Cubic Zirconia - Champagne - Square
    Cubic Zirconia - Champagne 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 - Champagne - Triangle
    Sale
    Regular price

    $4.00 - $4.50

    Regular price
    $5.50
    Sale price
    $4.00
    Cubic Zirconia - Champagne - Triangle
    Cubic Zirconia - Champagne 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 - Champagne - Trillion
    Sale
    Regular price

    $5.00 - $7.00

    Regular price
    $6.00
    Sale price
    $5.00
    Cubic Zirconia - Champagne - Trillion
    Cubic Zirconia - Champagne 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...
  • Regular price

    $8.00 - $12.00

    Regular price
    Sale price
    $8.00
    Cubic Zirconia - Columbian Emerald - Barrel
    Cubic Zirconia - Columbian Emerald 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...
  • Regular price

    $8.00 - $9.00

    Regular price
    Sale price
    $8.00
    Cubic Zirconia - Columbian Emerald - Barrel - Checkerboard
    Cubic Zirconia - Columbian Emerald 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...
  • Cubic Zirconia - Columbian Emerald - Cabochon Round - Checkerboard
    Sale
    Regular price

    $5.00 - $13.00

    Regular price
    $14.00
    Sale price
    $5.00
    Cubic Zirconia - Columbian Emerald - Cabochon Round - Checkerboard
    Cubic Zirconia - Columbian Emerald 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...
  • Regular price

    $8.00 - $9.00

    Regular price
    Sale price
    $8.00
    Cubic Zirconia - Columbian Emerald - Cushion
    Cubic Zirconia - Columbian Emerald 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...

Showing 1 -50 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.