This Australian opal shimmers in just about every color. Weighing 1 carat, the wood fossil opal is wrapped in 22k gold and nestled among the swirled wires of oxidized sterling silver. Gold dots are scattered around the band that measure a 7 1/2 but fits like a US size 7. This band is light and airy on the finger with the look of a wide band ring. This opal does not disappoint!