A collection of 12 gem-set rings, comprising: a garnet, citrine and diamond cluster ring in 9ct

A collection of 12 gem-set rings, comprising: a garnet, citrine and diamond cluster ring in 9ct gold, size N; a ruby and white topaz cluster ring in 9ct gold, size N; a diopside, white zircon and diamond cluster ring in 9ct gold, size P1/2; a kyanite and white sapphire cluster ring in 9ct gold, size P1/2; an amethyst and iolite cluster ring in 9ct gold, size P1/2; a fire opal and diamond ring in 9ct gold, size P1/2; a spessartine garnet three-stone ring in 9ct gold, size P1/2, all with Birmingham hallmarks; an orange zircon and diamond ring, size P1/2, indistinct hallmarks; a garnet and diamond ring in 9ct gold, size P1/2, British hallmarks, a blue topaz and diamond floral ring, size P1/2; an Oregon sunstone and diamond ring in 9ct gold, size P1/2, British hallmarks; and a kyanite and white topaz ring, size P1/2