The term "CZ" translates to cubic zirconium (Aluminum Oxide). There are many qualities of stones available that lay claim to this name. Basically, the term refers to a lab grown cubic or crystal that is the hardest natural mineral next to a diamond. High quality CZ's ranks in at an 8.5 hardness while the diamond reigns at the perfect 10!

The highest quality CZ offers such a close resemblance to a diamond that it is hard to tell the difference. One difference is that CZ's weigh about 75% more than a diamond of the same size, so CZ's are measured in millimeters versus carats. Just like diamonds, high quality, well cut stones, make a huge difference in the final product. Amazingly, there are also fake CZ's!

Our CZ's are made from Corundum. This mineral is found naturally growing as a crystal. There are different qualities, of which many are opaque and used for abrasives. But the clear crystals are kept for gems. The crystals occur naturally as clear/colorless, pink, red, blue, green, yellow and violet. Mined mostly in Sri Lanka, Thailand, South Africa, Russia and the United States, these crystals are used for making our range of CZ offerings. They are a great value!

Tip: When ordering stones be sure to order settings for each stone unless you have another use in mind.

Size & Color Note: Stones are shown larger than actual size for clarity. We now carry CZ's in 2 sizes: 6mm & 10mm.

Stone colors will vary in intensity due to the natural material. We do our best to match pairs but cannot control the stones. Colors shown here are close but approximate and may vary by monitor type.