This platinum necklace features a striking 0.43ct natural round brilliant-cut diamond in a soft light brown hue, graded SI1 clarity. The diamond is set in an Art Deco–inspired double bezel, adding architectural elegance and timeless character to the design. Suspended from an 18-inch platinum chain with a shortening ring at 16.5 inches, this refined necklace blends vintage influence with modern sophistication, making it an effortless statement for everyday wear or special occasions.