This is a rendered image of a Diamond modelled in Creo by John Forth.
Diamond appearance from the built in library was applied to the model and one extra spotlight added. The model was used to test an updated driver for his AMD FirePro V4900 card. The TIF image in the attached zip file took 1min 45 secs to render at Maximum resolution.
You can use the Creo model in the Zip to design your own bling!