Platinum & 18K Yellow Gold Art Deco Diamond Bar PinThis exquisite bar pin is a stunning example of early 20th century craftsmanship, combining platinum and 18K yellow gold to create a sophisticated two tone design. The elongated shape features an intricate openwork filigree pattern, characteristic of Art Deco aesthetics, with delicate milgrain detailing enhancing its refined elegance. At the center, a square cut diamond is bezel set, flanked by a series of graduated round diamonds, each set in