Cubic zirconia gemstones are quite hard, ranking an 8 on Mohs scale, and are not only an economic alternative to diamonds: cz gemstones come in a wide range of vivid, stunning colors to mimic any gemstone you choose. Make a beautiful ring or pair of earrings for a friend based on her birthstone, or use several CZ gemstones in a family or friendship necklace. Let our cubic zirconia crystals inspire you to try a new jewelry design or even a jewelry series. Try a CZ cubic today!