Channel settings are very popular for accent stones or simple rings such as eternity rings that lack an overall center stone or single focal point. Diamonds of similar size and shape – frequently round or princess cuts – are lined in a channel inset into the ring’s band, with a narrow strip of metal along the sides to hold them in place without prongs or bars between them.Because the stones are inset, this is a very secure setting option, though it does not highlight the gems as elevated settings do.