An unusual Art Deco style diamond engagement ring with sapphire and emerald calibre-cut compass surround. The round brilliant cut diamond is centrally set in a mille grained platinum collet, encased in a compass point border of alternating calibre-cut channel-set sapphires and emeralds. The ring is embellished with a hand-sawn pierced openwork undercarriage and open cheniers. Estimated total sapphire weight: 0.56cts. Estimated total emerald weight: 0.71cts. Estimated diamond weight: 1.52cts. Assessed diamond colour: H. Assessed diamond clarity: VVS.