Ola Shekhtman, a jeweler in North Carolina, produces gorgeous, finely wrought rings cut into the shape of the skylines of major cities: Boston, NYC, Amsterdam, London, Berlin, DC, San Francisco, Stockholm, Charleston and Edinburgh (twice!).
She makes the rings to order in sizes 5-13, in a variety of materials (silver, platinum, brass, bronze, gold, gold plate, rose gold plate, rhodium plate). Prices start at an extremely reasonable $69.
Ola Shekhtman City Rings [Etsy]