The research about 3D printing jewelry
These days, there are a lot of companies related to 3D printing jewelry. Among them, I found some websites that helped me to understand more about 3D printing jewelry.
This article explains how 3D printing jewelry doing right now.
http://i.materialise.com/blog/entry/5-trends-driving-3d-printed-jewelry-today
This is the website of Envision TEC which mostly develops and produces by 3D printing. They have touched many industries even including bio fabrication. The video gives the overview of how to print jewelry by 3D printer.
http://envisiontec.com/applications/jewelry/
This is the website of 3D Creative Workshops. They also envisioned about developing and producing 3D printing jewelry.
http://www.3dcreativeworkshops.co.uk/