λ A collection of nine rings

λ A collection of nine rings, comprising: an 18ct gold ring set with two rows of brilliant-cut diamonds, size Q1/2, British hallmarks; a gold and lapis lazuli ring, size S, Portuguese assay marks; a ruby and diamond ring, size R; an 18ct gold, amethyst and diamond ring, size O1/2, British hallmark; a 9ct gold ring set with a circular-cut sapphire and cushion-shaped diamonds, size M1/2, British hallmark; a banded agate cabochon ring in 9ct gold, size M1/2, British hallmarks; a green chalcedony cabochon ring in a quatrefoil mount, indistinct assay marks, size M1/2; a coral cabochon ring, size L1/2, indistinct assay marks; and a blackened silver ring set with a tiger's eye cabochon, size Q