Ashley Tisdale wore an oval filigree ring in gold to the premiere of Fame. Which is a movie I haven’t seen (not the remake, anyway) and still really want to. And Tisdale in Hellcats is a lot of fun! Anyway, I think this ring is great. I found a similar ring, but in silver. It has the same oval shape, and same filigree detail that you want.
You can get this filigree ring from Kohls
Ashley Tisdale pictures from Style Bistro.