This Diamond has been modelled precisely to a Tolkowsky cut diamond. see https://en.wikipedia.org/wiki/Marcel_TolkowskyGetting the cut shape just right, is very important for Light Physics and making the diamond sparkle nicely.The 3D max scene is rendered using V-Ray. A new Diamond material will need to be created if you wish to use it with another Rendering engine or 3D software.The scene includes 5 stones, 2 Standing, and 3 resting. The .obj includes a single Diamond.A simple lighting sytsem, with 3 Spots and 1 Dome light.This Diamond will set nicely into most, or maybe all, of your Jewellery designs, and requirements.With some tweaks to the material and refraction colours, it can also be any other precious stone, such as emerald, ruby, sapphire (materials Included in 3D max scene). Don't forget to check IOR index https://pixelandpoly.com/ior.htmlHDRI Map included.