18k Rose Gold plated Approx. 6mm x 6mm Round brilliant cut diamond simulant Chain length: 16.5" + 2.5" extender other listings: boho engagement band diamond 10k 14k 18k necklace bracelet bangle nike aquamarine earrings stud tanzanite ruby kors gift drop hoop earring milgrain lariat yellow white natural milgrain round stones scroll hoops tear drop carat pear art deco ctw anniversary vintage style jewelry bridal set sapphire pearl pave wedding butterfly unicorn opal victorian filigree