Our Cubic Zirconia Gemstones selection is kiln-safe for 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 many more. All of our Cubic Zirconia stones and materials are durable, and available to complete your custom jewelry. We offer the widest selection of custom-cut designer stones in big bling sizes for the best value in sparkle.
For firing temperature and time on a variety of gemstones, refer to our Gemstone Firing Guide:
Click here to download a PDF version of our firing guide.
Why buy cubic zirconia?
Using cubic zirconia in your jewelry artwork can hold many advantages. Among the highest is a low cost of production materials for an increased value applied to your jewelry art.
Another great reason to choose this man made stone is the hardness (I must note; this dose not apply when comparing to diamonds, ruby, alexandrite or sapphire). Cubic zirconia is a relatively hard man made gem. Rating around 8 on the Mohs scale. In comparison a Diamond has a rating of 10 (the hardest) and graphite with a rating of 1-2. How dose this relate to you, the jewelry artist. With a high level of hardness, cubic zirconia versions are suitable for jewelry that needs to take a beating, such as rings or bracelets.
Cubic Zirconia will be flawless every time. This, depending on your views, can be a great advantage. If your jewelry art ever needs a replacement stone, zirconia, a cost effective alternative, will retain the look and feel of the previous stone. No need to redesign your jewelries attitude to fit the stone. Let the stone fit the jewelry.
If there is any need to replace, or you just want to try out a different color. Size between cubic zirconia will remain constant thus your settings can remain the same.
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 comparisons a diamond has a refraction rate of 2.417. What dose this tell you, the consumer and jewelry artist? Each and every zirconia you purchase from Cool Tools can and will have a strong ‘fire’ or sparkle.
We have a wide selection of pre-made ring setting and supply metal clay to make your own settings or fire the cubic zirconia with your work of art.