A 19th century citrine and emerald ring, and ten other gem-set rings

A 19th century citrine and emerald ring, and ten other gem-set rings
The first with oval mixed-cut citrine between similarly cut emerald shoulders, finger size P1/2; six similarly set with faceted or cabochon turquoise, emeralds, amethysts and rubies amongst seed pearl detail with engraved mounts; an opal and and gem-set ring with engraved hoop; a pale green glass scarab ring; and two further gem-set rings