This is a diamond necklace. Chain length: Approximately 45.5cm Top size: Approximately 20.5mm x 4.5mm Engraving: Top (Pt900, 0.201, 0.215, 0.248), Chain (Pt850) Weight: Approximately 3.2g Accessories: Case, Gemological Institute of Japan appraisal certificate The diamonds are colorless and transparent, with excellent brilliance. The grades are Near Colorless (G) for color, SI-1 for clarity, GOOD for cut, and NONE for fluorescence. It has been polished for sale, so it is in beautiful condition with no particular issues. A case will be included, although it is not the one in the image. Material... Platinum Type... Necklace (Pendant top + chain) Decoration... Diamond Accessories... With box/With guarantee