A group of three rings

A group of three rings, including a lasqué diamond flower ring, comprising: a ring designed as a flower, set with large lasqué-cut diamonds and pavé-set with smaller brilliant-cut diamonds, size O, stamped K18 750; an emerald and diamond feather ring by Tabbah, size K1/2, signed Tabbah, stamped 750; a ring designed as a flower, the petals opening as it is twisted, applied with light blue enamel and set with brilliant-cut diamonds, size L1/2, stamped 750; and a diamond snake ring pavé-set with brilliant-cut diamonds, size M1/2