Special One of a Kind Necklace!! This extra special adjustable 18"-20" necklace is made with large oval white fresh water pearls and sterling silver links. The triple strands begin about 4.5 inches down from the clasp and drape to 3 different lengths. The white fresh water pearls are about 10 mm long and 8 mm wide at the largest (they will vary slightly) and the graduate to 5mm. It is really beautiful.