Antique Art Deco synthetic blue sapphire paste antique bar pin brooch. Good used condition with little to no signs of normal wear. Great antique patina. No missing stones. Brooch has channel set princess cut blue sapphire paste stones. there are small bright clear paste accents on each side. Stamped Sterling on the back of the brooch. 

Acid tests positive for sterling silver. 

Brooch measures 2 and 1/2 of an inch long and 1/4 of an inch tall.