The Crack Ring was designed with 70's Italy in mind. The image that comes to mind is a gal laying on a yacht anchored a few hundred yards off Capri, listening to Mina on the radio. It's blazing hot, maybe two in the afternoon. Pranzo is about to be served. There's a glass of Coca Cola next to her, the ice melted.
This ring was made for me according to my specs, here in the bay area. Front is 3/4" height, back is 1/2". It's made in solid sterling and comes in sizes 7 and 9.