Graduated Round Cultured Pearl Necklace Consign Now DeptJewelry Graduated Round Cultured Pearl Necklace, a strand of graduated round cultured pearls secured with a diamond set clasp. Pearls measure 4.80mm-8.50mm, 1 old European cut diamond measures .27cts, 6 diamond melee measures approximately 0.180cts. Please note that this auction has ended. Click here for an overview of this auction.