Hey Sal.
I'm the CEO of a South African based jewellery company, called ADARA.
Most of the industry here, as well as in the US, design using NURBS modellers like Rhinoceros. The new kid on the block seems to be Gemvision Matrix, which is built on the Rhino engine, but has a whole host of plugins, such as VRAY and T-Splines bundled in. (www.gemvision.com)
The Photo-realistic rendering is really great and it is actually really intuitive. It does cost a little bit though.
VRAY is a great bet though. It is just a challenge to get the textures and lighting right.
Good luck, hope I've been at least a little help.
Regards,
Matt,
Last edited: Mar 24, 2013