Sterling Silver Green Peridot Filigree Pendant Art Deco on 925 Silver Chain

This is a stunning pendant necklace from an estate collection. The pendant is an art deco revival style, featuring ornate sterling silver filigree, accented with a round-cut green peridot (confirmed with a Presidium Gem Tester II), with two small light purple gemstones. The purple stones are too small to get an accurate reading, so I'm listing them as dyed cubic zirconia. The pendant is stamped 925 (sterling silver), but there is no maker's mark that I can find. The pendant measures 1.4" (including the bail) by 0.6" The chain is modern. It's a sterling silver, marked 925, and 18" long and 1.1 mm thick. It's in excellent condition, and it will come in a gift box.