An amethyst and diamond dress ring, featuring a central claw-set round mixed-cut amethyst of vivid purple colour, measuring 13.4mm in diameter, encircled by a curved border grain-set with a single row of round brilliant-cut diamonds and an additional three rows of black round brilliant-cut diamonds, the shoulders grain-set with four rows of black round brilliant-cut diamonds, extending to a plain white metal ring shank marked ‘18K 750’, size M, 8.0 grams.