Niwa Niwaka Shirayuri Diamond Ring, a ring with a 0.235ct/E/SI1/3EX H&C diamond, with a certificate. This item was purchased at an auction for antique dealers held in Tokyo by a major buyer. Accessories include a certificate. The main stone weighs 0.235ct, and the weight of the side stones is unknown. There is a personal initial engraving. As it is a used item, there are some minor scratches, but it is a relatively clean item. Thank you. Material: PT900 Diamond weight: 0.235ct Diamond color: E Diamond clarity: SI1 Diamond cut: 3EX H&C Ring size: 8 Total weight: 2.94g