A tanzanite and diamond dress ring, featuring an oval tanzanite approximately measuring 9.8 x 7.5 mm, with bright bluish-purple body colour, claw set on a high profile mount, five marquise diamonds on each side of the shoulders with an estimated total weight of 0.30ct, to a tapered flat shank, yellow metal marked as '585', ring size N, total weight of item 4.0 grams.