Dormith 925 Sterling Silver Lucky Bead Fashion Barrel Bead Charm Pendant Necklace 12mmx9.3mm Rhodium Plating with Silver Chains Length 18in This amazing fashion opal necklace is made of 925 sterling silver and opal stone,the excellent crafts and materials show a top quality. It's a lovely design,the pendant size is 12mmx9.3mm, thickness:3mm.color: blue, light purple, white red fire are available. Opal pendant. Dormith has her own experienced engineers and designers, she always intends to make our beautiful products for you. Tarnish-free and anti-allergic, lead-free. Guaranted authentic, Money-back Satisfaction. Guaranteed by Dormith. Dormith 925 sterling silver pendant necklace, Total Length 18" (Chain Length - 16" + Extension Cord - 2)you can adjust between 16"-18