A group of jewellery

A group of jewellery, comprising: three stick pins, one set with a cabochon opal, one designed as a hand with shirt cuff holding a cushion-shaped diamond, connected by a chain to a third stick pin terminating in a small pearl (untested); a navette-shaped ring set with a brilliant-cut and single-cut diamonds, size L1/2; a blue guilloche enamel and seed pearl fob watch with a bow surmount; a three-stone diamond ring, size Q; a 9ct gold opal cluster ring, size L1/2, British hallmarks; and a sapphire and diamond cluster ring, size N1/2, stamped 18ct Plat, combined weight 40.9 grams.