May I also suggest our new Solus printer which is designed for jewelry production. Here's a class ring we printed on it:



And here's an eternity ring from print, to casting, to final product (Alloy: High Palladium 18ct White Gold (7.91g), Diamonds: 15 x 0.35ct, GIA G VS1 Ex/Ex/Ex):





http://www.reify-3d.com