Help with Jewellery Renders

[LukeBilling]

Hi All, I have been using vray within matrix for years but recently bought full vray to get better results.
I am struggling with dark shadows in my diamonds and they look a bit hazy rather then crisp. I have tried lights but wondering if there is a way to over ride what reflects my environment?
Also I cannot get a crisp white slightly reflective ground plane.

So far I have a slightly cartoon like ring render!

Any help and tips and tricks would be fantastic!

[Morbid Angel]

Do you area lights, try to mimic the studio setup as closely as possible (not use hdr in dome light alone). For the darkness in the diamond you have to increase the reflection and refraction depth a lot, try 30/30 or even 50/50.

[LukeBilling]

Dmitry, you are a legend sir! I am getting there now. Thank you.