A shank is the band
A shank is the band. The metal that goes around the finger — a hoop asked to live as the hold, not as the face. You do not meet the head first. You do not meet a full circle of stones. You feel a band, then whatever the ring has decided to carry. The literacy is the hoop.
A head is the part that holds a stone: a setting, a cluster, a plate the gold has raised. An eternity is a band that has already been written as stones all the way around — no plain metal left to name as a shank. A shank begins when the circle is metal, and the metal is what goes around the finger. The stone, if there is one, sits on a head. The band is the rest.

An 1807 gold ring is the lesson in one hoop. A wide plain band, hallmarks inside, no stone, no head — the shank is the whole sit. You would feel that circle before you named a year. A head would have asked the gold for a setting. An eternity would have asked the circle for stones. This ring stays a band. The shank is the metal that has already agreed to go around the finger.
The literacy is the circle you can name. If the face is a setting, you are looking at a head. If stones run the whole way around, you are in an eternity. A shank begins when the hoop is the band — metal as the hold, a finger’s weather, already the part that stays when a stone is later added.
A milled hoop, then a band under a head

A milled gold ring keeps the same appetite as a quieter band. Two fine rims, a plain center, still only the hoop — no head, no eternity of stones. You would meet those milled edges before you named a setting. The modern shank takes that circle and names it: the part that goes around the finger, a band you can still read as metal.
A late nineteenth-century gold ring finishes the thought as a shank worn under a head. Seed pearls as a small weather on top, gold as the hoop that continues beneath — the band you would feel if the pearls were lifted. You would meet that gold circle before you named a cluster. Turn the jewel and the shank stays a band. A head on a modern shoulder would stay a setting. An eternity would stay stones all the way around. You would feel metal around the finger, then, if the ring has one, a face.

That is the note. A head is the setting that holds a stone. An eternity is a circle of stones. A shank is the band — the metal that goes around the finger.
Educational only · Not jewelry, insurance, or legal advice