An early Victorian diamond spray brooch

An early Victorian diamond spray brooch, the flower-head centrally set with an old cut diamond estimated to weigh 0.6 carats, each petal with a pear-shaped diamond surrounded by smaller old-cut diamonds, set amongst foliate decorations, the diamonds estimated to weigh 10 carats in total, set in silver on a yellow gold back, gross weight 21 grams, approximate length 10 cm, circa 1850,