This sterling silver brooch/necklace glistens like new-fallen snow on a cold sunny day. The myriad glittering marcasites shimmer like so many ice crystals on the scrolling floral design. The black synthetic cabochon nicely contrasts with the sparkling silver. I believe it is from the 1930's. The pendant is marked 925 and the chain is marked 925 and Italy. The brooch measures 2 1/4" by 1 3/4". The chain is 18" in length. It weighs 19.7 grams.