This lovely pendant is a 14 K yellow gold fish with great movement. The tail is very flexible and the scales of the body move slightly. Each prong set ruby eye measures 4mm. The measurements are 1 3/4 Inch long by 3/8 Inch at the widest point. The jump ring is stamped 14 Y 525. Weight is 4.25 Grams. This is truly one of the loveliest articulated fish pendants or charm to be admired for a long time.