Mixed Colour Cubic Zirconia, Round, Pack of 20 Various Sizes

Round Faceted Manmade gemstone Hardness: 8.5 on the Mohs scale Range of sizes and colours Cubic Zirconia is a simulated stone with an exceptional visual likeness to diamond. Lab created from a colourless 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 colours. These round faceted CZ stones consist of a pack of 20 and are of mixed sizes and colours. Please note the image is an indication only and individual packs may vary. 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 there appearance could be altered or they could damage, including colour changes. The stones should not be exposed to high temperatures between 1650°F to 899°C for prolonged periods of time. We would not recommend using Aqua, Tanzanite or Black CZ stones for projects that require high temperature techniques, lighter CZ stones such as white, lilac and pink are more suitable to sustain a higher heat with minimal changes or damage. 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 20.