Diamond Coiled rings are made with our Softer Easier to work with Stainless Steel Square wire.  It is coiled on the Edge of the square, so it appears that the rings are a Diamond Shape!  These are sized to match our round wire rings -- So you don't need to math, or make wild guesses to figure out which sizes work for what weaves-- What works in regular Round wire also works in our Square and Diamond Coiled Rings!  (Unless the pattern is VERY AR specific like JPL, or some of the Persian style weaves -- but generally most weaves work)