This antique Art Deco platinum diamond onyx brooch pin features a unique design with a triangle shape and a total of 38 natural white diamonds totaling 2.0 carats. The brooch also includes onyx as a secondary stone, set in a pavé style on a platinum base metal. Weighing 21.62 grams and measuring 2 1/4" wide and 1 1/2" long, this vintage Estate piece from the Art Deco era exudes luxury and elegance, making it a standout accessory in fine jewelry. Please enlarge photo's for best details. Looks even more spectacular in person.