Opal, October's birthstone, exhibits the phenomenon called play-of-color. These opal flash mostly red, with touches of blue, and only a hint of green. They measure 7 x 5 mm in diameter and are set in an 4 prong setting. Made of 14 kt white gold with friction backs. Total opal weight is 0.87 carats.
This item is rhodium plated, a member of the platinum family.