No other gemstones are like opals. These beauties are known for their fiery displays of color that change before your eyes. Opals shine from within by refracting and bouncing light off of the silica chips found in the stone. Opal jewelry is a unique choice that celebrates the unique properties of opals. The opal is the birthstone of October, making opal jewelry a lovely gift for those born in October. Because of its beauty, opal is sure to be treasured by anyone you give it to. Pretty, precious and dainty, opal gemstones are simply spectacular.