What is a shank on a ring?

A shank on a ring is the band that circles the finger. It is often made of metal and can be plain or embellished with diamonds or other gemstones. The shank is an important part of the ring as it provides the structure and support to hold the setting and center stone in place. It also determines the size and fit of the ring. Shanks can be thicker or thinner, or even split or tapered for added design elements. Overall, the shank on a ring plays an important role in the aesthetics and functionality of the piece.