ITEM NAME:Synthetic Diamond Single Crystal 0.08 Carat Width 2mm Hardnes 10 Made Russia.Width: about 2mm. Synthetic Diamond Single Crystalï ¼Ë†not natural ! Weight: 0.08 Carat. Source areaï ¼Å¡Russia. This international order may take longer to arrive. Moh's hardnessï ¼Å¡about 10.