Ruby, Black Diamond and Diamond 'Frog' Necklace,Michele della Valle

Continuously set with seventeen crouching frogs, the bodies decorated with numerous circular-cut rubies, limbs accented with black diamonds, eyes enhanced with near colourless diamonds, alternated by bezel-set diamond spacers, together the diamonds weighing approximately 9.15 carats and black diamonds and rubies altogether weighing approximately 29.20 carats, mounted in 18 karat gold and white gold, stamped 'Mdv', numbered 10412. 

Length approximately 410mm

Accompanied by a signed pouch.