A collection of thirteen rings, comprising: a 9ct gold ring set with an oval sapphire, size O; a sapphire and diamond cluster ring in 18ct gold, size O; a sapphire five-stone ring in 9ct gold, size K1/2; a three-stone cabochon sapphire ring in 9ct gold, size O; a sapphire three-stone ring accented with single-cut diamonds, in 18ct gold, size N; an oval sapphire and single-cut diamond ring in 18ct gold, size N; a synthetic blue and white stone half eternity ring in 9ct gold, size M1/2; a synthetic sapphire and half pearl ring in 9ct gold, size N, pearls untested; and a synthetic star sapphire ring in 9ct gold, size P, all with British hallmarks; together with a cabochon synthetic sapphire ring in gold, size M1/2, indistinct assay marks; a cabochon synthetic sapphire and diamond cluster ring in gold, size N1/2, stamped 18CT; a simulant diamond and sapphire cluster ring in gold, size N1/2; and an oval sapphire and single-cut diamond cluster ring in gold, size O1/2