Antique diamond and pearl necklace

A PEARL AND DIAMOND NECKLACE, CIRCA 1900, composed of a central openwork foliate scroll pendant set with two natural pearls and old circular-cut diamonds in silver and gold, between similar foliate pendant links set with natural pearls and diamonds, to a later fine link platinum back chain set with seed pearls, foliate links detachable from back chain, pendant length 4.4cm, overall necklace length 38cm, gross weight 18g