Hello, I am a new member and I have been reading your threads with interest. I was initially looking for a large aquamarine to have a cocktail/statement ring made but couldn't seem to find one with the right colour for the right price... I wanted one with a blue-green tint, not too light. In the end I instead bought a 12,96 ct blue-green tourmaline from AJS gems and I would like to have it set either in white or rose gold. For the moment I am leaning towards rose. The stone measures 18.80 x 12.20 x 8.28 mm and I am thinking a simple four prong (solitaire) setting but would appreciate any input from you CS experts. Thanks!