Edwardian Era elaborate pendant necklace with a large fancy round-cut natural gem Madeira citrine (approx. 30 carats TW dimensions 20mm x 20mm x 16mm, GIA certificate) in a fine milligrain platinum mount with stylized leaves and flower blossoms and a bow all set with 83 old European round-cut diamonds (approx. 4.65 carats TW) suspended from the matching and period platinum chain, c.1900