THIS IS A BEAUTIFUL VINTAGE PS Co. ART DECO 10K RING AQUAMARINE COLORED TOPAZ STONE RING IN GREAT CONDITION TOP OF RING HAS A 8 MM BY 6 MM OVAL FACETED AQUA COLORED BLUE TOPAZ STONE PRONG SET TOP OF RING MEASURE 8 MM DOWN THE FINGER AND IS A SIZE 4 1/2 IT IS STAMPED INSIDE WITH MAKERS MARK PS Co (PLAINSVILLE STOCK CO.) CONDITION IS VERY GOOD EXCELLENT PLEASE SEE ALL PHOTOS