Dormith 925 Sterling Silver Classics Waterdrop Synthetic Blue/white/green Fire Opal Pendant and Necklace Chain 18 Inches This amazing Opal pendant necklace is made of pure 925 sterling silver, and with quality created opal, aaa cubic zircons It's a lovely design,the pendant size is 9mmx28mm. Tarnish-free and anti-allergic. Dormith always focused on the high qulaity products, shining your life. Money-back Satisfaction. Guaranteed by Dormith. Dormith 925 sterling silver pendant necklace, it measures full 16 inches, and extends to 18 inches, also you can adjust between 16"-18", it's modern and charming and appropriates in many occasions.