This is a beautiful Platinum Diamond cross that I purchased on Ebay for $800. PT950 is stamped on the chain clasp and on the back of the cross itself. It measures approximately one inch from the very top to the bottom and each diamond is approximately 1-2 mm wide. I am no good at guessing but would probably say this is a carat in total. Any questions please email and thank you for looking!THIS ITEM WILL ONLY BE LISTED ONCE. Please note, I do not know how many carats the diamonds are (I am guessing) and I do not know the weight of the platinum. The chain is 16 inches long. I am not a jewellery expert and have described this to the best of my knowledge. I cannot be held responsible if my estimates are not correct. All I know is I had it appraised at $800. Item sold as is, no refunds or returns offered.