Material: Platinum Decoration: Diamond Platinum 850 Natural Diamond 0.20ct (6-prong setting) Venetian chain Adjustable up to 45cm (with adjuster) ◾︎ Not plated. Originally 40cm, but a Pt850 adjuster was custom-made and added. There is no certificate of authenticity, but the diamonds are beautiful. No box included. I am also listing this on other sites, so it may be removed. To prevent substitution, returns are not accepted. #PlatinumDiamondNecklace #NaturalDiamond Material: Platinum