White Opal Heart Necklace and 925 Silver Chain Opal, from the Greek, "Opallos" meaning to see a change of color Beautiful opal and 925 silver heart pendant necklace. There is silver on the back of the pendant and opal on the front of the pendant. LET US KNOW IF YOU WANT THE WHITE OR BLUE OPAL PENDANT Size of Pendant is 16 mm long [ .63 inch] including the ring clasp. Pendant is 1.54 gram Length of Chain: 16 inches long [40 cm] Chain is 925 silver Delicate heart shaped design. The opal is simulated produced opal