This is a Tiffany & Co. Solitaire Diamond Necklace. It is made of Pt950. The diamond carat is 0.12 carats. The necklace length is 41cm. The clasp plate is engraved with "Tiffany & Co." and "pt950". This is the same model currently sold for 225,500 yen. I purchased it 5 years ago and have worn it 5 or 6 times, but there are no noticeable scratches or stains. There are no accessories.