A late 19th century diamond necklace

A late 19th century diamond necklace, the foliate scroll upper section centred with an old circular-cut diamond weighing approximately 0.99cts, suspending a detahcable foliate drop section centred with an old circular-cut diamond weighing approximately 0.60cts, set overall with old cushion-shaped diamonds in silver on gold, on a later fine-link silver neck chain, necklace 38cm long