THIS OPAL HAS RETAIL VALUATION OF $150.00 BUT CAN BE YOURS AT A FRACTION OF THIS COST AS WE ARE WHOLESALERS AND BUY DIRECT FROM LIGHTNING RIDGE TO KEEP PRICES DOWN AND PASS THE SAVING ON TO YOU WITH OVER 25000 BLACK OPALS SOLD OVER THE INTERNET SUCCESSFULLY . OPAL COMES WITH A CERTIFICATE OF VALUATION FOR INSURANCE PURPOSE WHICH WE SEND WITH THIS BRIGHT MULTI COLOURED  FIRE LARGE STONE VIBRANT COLOURS FOR A RING OR PENDANT  STITTING BEAUTIFUL LOOKING STONE 9 X 5 X 3  MM  AND 0.70   CTS ..

NATURAL QUALITY BLACK OPAL STONE FROM ARE MINNING OPERATIONS AT LIGHTNING RIDGE AUSTRALIA. THIS UNIQUE OPAL HAS GREAT LIVELY FIRE WITH BRIGHT COLOURS WHICH CHANGE WITH EACH DIFFERENT ANGLE THE OPAL IS VIEWED.

THE COLOUR SPECTRUM RATING FOR, OUT OF 5 FOR BRIGHTNESS IS 4. FOR THIS OPAL.   

6 MM IS APPROXIMATE ¼ INCH