Tiffany Solitaire Necklace PT950 Serial number on the diamond and setting, approximately 2.7g Purchased from Tiffany's 6 years ago. Appraisal certificate is missing. Design specification is 0.6 carats or more, and the top does not shift position. Discoloration on the marcan part, which can be cleaned at Tiffany's (service cleaning). Color is unknown due to the missing appraisal certificate. In my personal opinion, it is colorless. Please check the condition in the photos. Please refrain from price negotiations. No price reduction. I will not respond to comments regarding price negotiations. Will be shipped via Rakuraku Mercari. Measures have been taken to prevent item substitution. Serial number has been recorded.