Hello!
here is a recent link discussing photography
have a go searching this forum for other informative posts
try these keywords:
photography
jewelry photography
macro photography for jewelry
macro lenses
lighting for jewelry photography
polarized lenses
photography lightboxes
cameras for jewelry photography
how to shoot jewelry
photographing gemstones
photographing shiny objects
search youtube as well:
Photigy
Vadin chiline
check out Photigy.com
julie