Edwardian Era platinum and diamond bar pin set with 12 Old European cut diamonds. The total diamond weight is 4.0 carats. The average GIA clarity grade is SI/1 and the color is G-H. The pin has side engraved details, and has a Black, Starr & Frost stamp. The craftsmanship is fine, and the condition is excellent. Circa 1905. The pin measures 2" in length. Note: Mounted gemstones are graded only to the extent that mounting permits examination.