The Chatham Ring by Boem Collection

A tiny seashell charm on a 16 in chain — charm and chain both 14k gold-filled, not plated. Handmade in Westerly, Rhode Island. Waterproof, but keep it out of salt water and perfume.

A real shark tooth dipped in 14k gold, on an 18 in gold-filled chain. It's a found specimen, so every tooth is a slightly different shape and size.

An oyster painted on white porcelain, rimmed in 10k gold. 3.75 in across — ring-sized, not snack-sized. Food-safe but hand wash only, and it arrives in a plastic-free gift box.

A whole open sardine tin embroidered on washed maroon — three fish with blue-striped backs, a green SARDINE label, lid peeled back on its key. About two inches wide. Soft crown, one size, antique-brass tab at the back.

A single oyster embroidered about three inches across the front of a washed slate-blue cap — cream shell, teal and purple layers, pearlescent belly. Big enough to be the point. Soft crown, one size, antique-brass tab at the back.