Set in sterling silver and marked so on the back with the standard stamp of 925, this ring is fully adjustable to fit most fingers from size 5 through 10, and then some. The sea glass is all natural and found on the beach. You will get the actual item pictured in a nice ring box. The length of the sea glass is about 10mm. This piece of sea glass is a multi colored piece commonly referred to as end of day glass and was found in England.