I.M.Pei 
Just googling this wonderful man you are inspired by his warm happy face. But it's his architecture that we live with and so often see images of, that is most inspiring. Probably the most photographed being the glass pyramid in front of the Louvre, Paris.
So here it is, matt polished, heavy and delicious and inspired by this great architect. Maybe starting a collection of architect inspired chunky rings for jac&hugo?