Designed by Alwand Vahan, hallmarked with AV, 925 and 10K. Designating sterling silver with 10K hugging the emerald green stone. Founded in 1968, Vahan offers complete collections of jewelry, made with gold, sterling silver, and with diamonds and colored stones. There are also 3 teensy diamonds in the charm. This is the May birthstone and is a perfect spring color! This hangs from a gold coated fine sterling chain that is 16" long with a 2" extender attached. Closes with a lobster claw clasp. Professionally cleaned, from a smoke free home.