Nice Polished/Drilled Boulder Opal Pendant 17.5cts Blue/Purples Queensland Australia

I have for sale a Nice Polished Freeform, and then drilled Boulder Opal Pendant from Queensland Australia. It weighs 17.5cts and is 21x13x7mm.. It has Blue/Purples in Clear and Milky Opal on the Top face, slight veins through to pattern in the back. Ironstone base. It has been drilled, and is fully polished ready for a Cord/Chain.. (let me know if you need a cord, may be able to send one with it)  Thanks for looking,.,.,.,.