A group of gem-set and diamond jewels

A group of gem-set and diamond jewels, comprising: a ring of cluster design, set with a cabochon jadeite, within a border of single-cut and baguette diamonds, mounted in white gold, size M; a ring of foliate cluster design, set with oval sapphires and single-cut and baguette diamonds, mounted in white gold, size K1/2, stamped 18K; three brooches of floral spray design: one set with polished jadeite, single-cut and baguette diamonds; one set with marquise-shaped rubies, single-cut and baguette diamonds; and one set with brilliant-cut diamonds, longest 6.2cm, each stamped 18K; a Lalique brooch set with butterflies of moulded pink and purple glass, length 8.7cm, signed Lalique; and a brooch of abstract foliate design, set with floral clusters of brilliant-cut diamonds, mounted in white gold, length 5.5cm, stamped K18