This stunning Boulder Opal has all the colours…….exceptionally bright crimson red, to brilliant orange, to bright green and blue. The colours just glow from this opal.  This opal is set in solid 18ct yellow gold in a quirky unique design featuring the opal offset on the gold band. The opal measures 17mm x 8mm, with the gold band measuring 5mm wide beside the opal tapering to 2mm wide on the underside. The ring is a size 6.