This is a diamond necklace from Jewelry Maki. The single diamond is 1.01ct, so it has a lot of volume. Thank you for your interest. Unfortunately, there is no appraisal certificate, so details such as color, clarity, and cut are unknown. I apologize, but the information is limited to the images and product description. Thank you for your consideration. Material: PT850 Natural Diamond Product: Necklace Chain Length: Approximately 21cm in a loop Weight: Approximately 4.6g I am using a household scale, so all measurements are approximate. Please be aware that this item has been stored at home and may have unnoticed scratches. Diamond Necklace Diamond Necklace Top Diamond Necklace Diamond Necklace Top Diamond Necklace Jewelry Maki Jewelry Maki Platinum Diamond Necklace Jewelry Maki Necklace #DiamondNecklace #DiamondNecklaceTop #DiamondNecklace #DiamondNecklaceTop #Diamond #Necklace #JewelryMaki #JewelryMakiPlatinumDiamondNecklace #JewelryMakiNecklace