Silver pendant showing two palm trees and a ruby birthstone from Hawaii. This pendant is marked "CREA STER O" which is a vintage maker's mark for items made of Sterling Silver, often seen on charms and pendants, indicating quality silver metal. I do not see any other marks to verify silver. It's not a common modern brand but a hallmark from the past, signifying the item is 92.5% silver, a durable precious metal. You'll find this mark on older pieces, like the cruise ship charms and bracelets popular in the mid-20th century. It is just under 1 inch long.