This sophisticated high quality 925 sterling silver Australian White Fire Opal necklace has beautiful hues of rainbow pastel multi color flashes including pink, purple, red, yellow, green and blue flashes throughout Hanging beautifully off the neck and complimented with cubic zirconia's that drop down the top of necklace for that added brilliance and flash, this precious Opal gemstone can be seen from across the room and is sure to turn heads. The Opal is 100% natural, untreated and ethically sourced. Necklace comes with base metal chain. For more chain options, please see below. The Opal is 100% genuine and ethically sourced from quality mines in Australia.