Circa 1910, this Platinum and Diamond Bow is a gorgeous Edwardian design, which was originally a brooch, and made modern into a necklace.  The 2ct round Emerald in the center has a lush green, noble hue, which is enhanced by 5 carats of Old Mine Cut Diamonds. Queen Elizabeth had a personal collection of Diamond and Platinum Bow brooches, which she wore often for milestone occasions.