An Indian turquoise and seed pearl necklace, 19th century

designed as a series of fifteen flowerhead swags each set with turquoise petals centring a clear white stone, suspended from a three-strand seed pearl and turquoise bead necklace, length approximately 35.5cm; and an amethyst and seed pearl necklace, designed as a series of oval-cut amethysts suspended from a seed pearl necklace, length approximately 43cm