Thank you for viewing this. Price reduced. This is a platinum 850 diamond necklace that I purchased from Nissen several years ago. The diamond is 0.56 carats. A gem certificate is included. The length, measured flat, is approximately 18cm x 2, or about 36cm. I have hardly used it, so I think it's a beautiful item, but please understand that it has been stored at home. Please refrain from purchasing if you are overly concerned about details.