I collected this piece of Seaglass myself from the Northern California Shore. It’s a lovely seafoam color and measures about 16mm. It sits on a patterned 6mm low dome silver wire band. My maker’s mark is on the back of the ring and it’s a size 7. This ring cannot be resized, sorry. It’s been oxidized and tumbled for strength and shine. Made entirely by my two hands in my little blue church house studio.