Vintage sterling silver pendant and chain necklace Pendant is in the design of a butterfly with wings set with turquoise. The design is raised appliqué.  The head has a red stone that does not have striations like coral does. It is glued in place. I do not know what it is. Pendant is marked 925. Measures 2 1/8” tall with a wingspan of 2 1/2”.  The heavy sterling silver chain is 18” long by 4mm wide.Marked925 as well.  Entire piece weighs 44.6 grams.