Simple Golden CrownTiara
With some little nodes-effects (Glare, Blur)
The .blend file includes a before-apply-of-the-curve-modifier copy of the crown model, where it looks like the flat and cut golden-strip for the goldsmith to bend. You are invited to play with the curves specs to get another bends of the crown.
The reflection texture is from here: http://www.hdrmill.com/Freebies.htm
It seems to be completely free for use. Thanks for HDR Mill.