Necklace Brand: 4°C (stamped) Color: Yellow Gold Material: K10 (stamped) Stones: Blue Topaz, Diamond Length: Approximately 40cm (including adjuster) This was a gift. I've only worn it twice and have kept it in storage, so there are no noticeable stains or scratches, and I think it's in relatively good condition. Cleaned with a cloth. Please check the photos. I believe it's a beautiful item, but please understand that it is a used item. Price is not negotiable. Box not included. Instant purchase OK. November Birthstone London Blue Topaz Color: Blue系 (Blue-based) Material: K10 (10 karat gold)