A breathtaking heirloom from the Art Deco era: an opal and diamond dress ring. At its center rests a dark-bodied opal, smooth and impossibly alive, like a midnight canvas painted with rainbow light. Its play-of-colour shifts to reveal flashes of blue, purple, pink, orange, yellow, green… a moving prism that dances with every tilt of the hand. The shoulders unfurl in finely carved foliate scrollwork, each side set with three glittering old-cut diamonds, reminiscent of leaves touched by winter moo