"Always used chamfer edges when render Crystal or Glass" Please share any useful thing of 3Ds Max like this here.

sorry i am not familiar with3D Max, but in Maya after you chamfer edges you need to bevel all your crystal edges with a small value to give the lined-highlight of edges

If you want edges of model prominent with any colour then use "VRayToon" from "Environment and Effects"  

Thanks for sharing such a good knowledge.

Alt+W is a shortcut for Maximize and minimize View.

Alt+Q is a shortcut for frame render