Scavia, a blue topaz and diamond demi-parure

Scavia, a blue topaz and diamond demi-parure, comprising: a ring with tapering terminals set with carved blue topaz of aquatic design with terminals of round brilliant-cut diamonds, in white gold, signed Scavia, Italian control marks, stamped 750, size L; and a pair of earrings of similar design, each set with a carved blue topaz below a border of round brilliant cut diamonds, in white gold, signed Scavia, Italian control marks, stamped 750, clip and post fittings, length 2.8cm