A diamond rivière necklace, by Greek designer Pentheroudakis...

A diamond rivière necklace, by Greek designer Pentheroudakis, comprises an array of round brilliant-cut diamonds of the same size, with an estimated total weight of 12.20ct, approximate colour and clarity H, VVS, three-claw set on linked yellow precious metal mounts, fastens with tongue clasp and a fold-over safety catch, marked as '750', in a travel pouch signed Pentheroudakis, measures 40.5 cm in length, 28.8 grams.

According to the insurance valuation, the diamonds are assessed to weight 12.20ct in total, and have a colour and clarity grade of H, VVS.