This ring was purchased at Daimaru in Sapporo a few years ago during a trip. It is 3mm wide. It's a popular Tiffany diamond half-eternity ring, and the diamonds are considerably larger compared to the 2mm wide ones that are widely available (see the last image). I wore it often when I first bought it, but I haven't been using it lately, so I'm putting it up for sale. For the sale, it has been newly polished and is sparkling. The original box has deteriorated over time and was discarded, so it will be shipped in the box of another item shown in the images. Thank you. Material: Platinum Size: 9 Weight: 4g Accessories: All items in the images I am also listing this on other sites, so it may be removed suddenly. Thank you for your understanding.