This is a platinum single-diamond necklace. The top is Pt900, and the necklace is Pt850. The necklace is a screw type. The top features a single diamond of 0.383ct, a size that isn't too overwhelming. The color is a light brown. Overall, it's a simple and easy-to-wear, convenient necklace and top. The top is not detachable. There are no noticeable scratches. It will be shipped in a used case via Takkyubin Compact. 【Material】 Top → pt900 (Platinum 900) Necklace → pt850 (Platinum 850) 【Top】 Diamond: 0.383ct Light brown color ※ There are inclusions and carbon, but they are difficult to see with the naked eye. It has luster and shine, and sparkles. 【Necklace】 Screw necklace Length → Approximately 40cm ※ With an adjuster ring. Can be worn at approximately 35cm. 【Weight】 Approximately 1.0g 【Accessories】 Used case Material... Platinum Color... Silver Decoration... Diamond