Hi Bert- There are no step by step rendering solutions, but if you do a search for jewelry, diamond, etc and then read those posts you will find a good start.
And make sure to check out the THINK site- there is a post over there about Studio Lighting, and another tutorial that JD posted about rendering a perfume bottle that are good starting places.
There are also a ton of posts on here with people figuring out best ways to go about rendering jewellery. If you search my posts you will find me asking a lot of questions and getting some really good answers from the experts here. Good luck and posts any other questions you may have
Cary

- By Edward Leibnitz