Yayisa Necklace 18k Yellow Gold Plating Collar Choker Necklace with Crescent Shape Synthetic Blue Opal Material&Stone: Brass with Synthetic opal & 18k Gold Plating Size:150*140mm (Open Mouth Which is Adjustable),Brass weight:63.5G Real 18k Yellow Gold Plating with Anti-tranishing Protecting Newest Style by France Designer in 2015 Gift-wrap Available,Beautiful Gift for Lover, Family, Friends and Coworkers