This stunning solid Boulder Opal ring has  brilliant ribbons of electric green and blue colours flashing across the opal with some orange red sparkling in the mix of colours. The freeform shaped opal is set with a surround of 9ct yellow gold with an (anti tarnish) sterling silver band, the opal measures 14mm x 10mm,  the ring is size 8. Gold weight 1.4 grams, opal 3.98 ct