Blue Opal Cross Pendant Necklace Gold Plated 925 Sterling Silver Chain Blue Synthetic Opal Cross Pendant. Cross size: 9mm x 12mm Gold Plated 925 Sterling Silver Chain BEAUTIFUL PACKAGING INCLUDED - This Dainty necklace comes inside a lovely MARTINUZZI gift box with bow. Perfect gift for women on Christmas, San Valentine's, Mother's Day or any other celebration or holid