This is a magnificentTiffany & Co 1/4 carat diamond platinum knife edge solitaire engagement ring. This pre loved ring is in pristine condition. The prongs are excellent and show no wear. The ring has been polished to an excellent condition. The ring has the 8 number serial number and weight engraved. The diamond was tested for authenticity. The diamonds in this Tiffany solitaire is colorless and I see no visible flaws at 10 power. The ring is very sparkly please see video. This beautiful ring will go to poshmark for authentication. This ring retails for approximately $2800.