Lilac Cubic Zirconia, Round, 4,5,6mm, Pack of 28 gemstone

Round Faceted Manmade gemstone Hardness: 8.5 on the Mohs scale Range of sizes 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 are in a lilac purple shade and consist of a pack of 28, ranging in size from 4mm, 5mm and 6mm. 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. 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 28.https://www.cooksongold.com/Gemstones/Lilac-Cubic-Zirconia,-Round,-------4,5,6mm,-Pack-of-28-prcode-61CZ-P005?p=gs