Antique Gold Diamond Fringe Tiara Necklace

An antique diamond necklace, with a graduating fringe, set with old-cut diamonds, in claw settings, in the top row, rose-cut diamonds, in lozenge shaped settings in the centre row, on knife edges and old-cut diamonds, along the bottom row, in crown claw settings, spaced with triangles, grain set, with groups of three rose-cut diamonds and a back chain, set with old-cut diamonds, in claw settings, on knife edges, mounted in gold plated silver-upon-gold, with an estimated total diamond weight of 12.00ct, circa 1880.