Playing with the "Supertoroid" primitive, ripped apart and heavily modified. The material I made here cost me a five and a half hour render time, but I think it was worth it in the end. This is sort of the equivalent of a glossy material with a roughness of around .06 in Cycles. One sun, 20 samples/12 softness. Environment lighting(white), power of 1, Falloff of 10/1/16 samples. 1920 X 1200