Antique Platinum, Gold, and Diamond Bar Brooch

The platinum openwork bar brooch set with transitional cut and old mine cut diamonds weighing approximately 1.30 total carats (K-L color, SI1-SI2 clarity) in conforming surrounds with milgrain detailing, testing platinum, completed with a white gold locking pin stem stamped 14K.

.25 x 1.75 in.

3.2 dwt.

Two transitional cut diamonds with surface reaching fractures visible under 10x magnification; old mine cut diamonds with abrasions to girdle visible under 10x magnification, as expected with diamonds of this era.