A tanzanite and diamond cluster ring, stamped 18k, assessed as 16ct white gold, made as a lovely cushion shaped cluster ring, featuring a central rectangular cushion cut tanzanite of vibrant medium violet/purple colour, weighing approximately 1.90ct, claw set in four bead claws, framed by a fine claw set surround of brilliant cut diamonds, twenty-four in total, weighing approximately 0.36ct, merging to a fine band.