Rivière necklace and detachable pendant, central 18kts white gold, natural emerald, emerald cut estimated weight 9cts, surrounded by 23 diamonds, marquise cut estimated total weight 3.50cts and 20 diamonds, brilliant cut estimated total weight 3cts, estimated colour grade G-H and estimated purity grade VS1 Rivière of 111 brilliant cut diamonds, brilliant cut estimated total weight 16cts, estimated colour grade G-H and estimated purity grade VS1 . .