White Cubic Zirconia CZ, Round Shape for Practice Rings, Pack of 50

Machine cut in Switzerland, this round CZ features a bright-white flash and light-catching facets, making it an ideal choice for one-of-a-kind designs. Take advantage of its durability and use it to brush up on your setting techniques before moving on to softer stones or use it as a temporary stand-in for diamonds in custom show pieces. It sparkles when used on its own, but makes a larger statement when paired with colorful stones in more complex, necklaces, rings and matched sets.An economical alternative to diamond, cubic zirconia is a lab-created white gemstone that offers an excellent play of light and is also available in a variety of colors to complement a wide variety of stone-set designs. Lab created from a colorless material, cubic zirconia has virtually flawless clarity and high sparkle but with the additions of oxide elements, can also be produced in a variety of colors. These round faceted CZ stones consist of a pack of 50  Cubic Zirconia has a hardness of 8.5 on the Mohs scale and a specific gravity of 5.6 - 6.0. Care: These cubic zirconia stones are suitable to be used in metal clay casting however any time cubic zirconia stones are fired, there is a chance the appearance could be altered or they could damage. The stones should not be in a kiln for longer than 2 hours or at a higher temperature than 1650°F to 899°C. Please note this is guideline only and their suitability should be tested prior to use. Cubic Zirconia can be cleaned in an ultrasonic, steam cleaner, or a soapy water mix. A slight tolerance of +/- 0.25mm should be expected with these stones and these cubic zirconia are sold in packs of 50.