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 14mm. The piece of glass is multi colored and commonly referred to as end of day glass and was found in England.