THIS IS A QUALITY SEMI BLACK OPAL FROM LIGHTNING RIDGE.THIS STONE SHOWS GOOD FIRE FROM ALL DIRECTIONS AND IT IS IDEAL FOR A RING OR PENDANT.PLEASE VISIT OUR MAIN SITE -“SEDAOPALS” AND ” BOULDER MAGIC"WHERE WE HAVE THOUSANDS OF STONES FROM $10 BARGINS TO COLLECTOR STONES. BRIGHTNESS: OUT OF 5- 4 AS THIS IS OUR WHOLE SALE PRICE SO WE HAVE NO HESITATION IN OFFERING A MONEY BACK GUARANTEE IF YOU ARE NOT PLEASED WITH YOUR WIN. .. Opal Body Tone Scale as per recommendation by the Australian Opal and Gem Industry Association Ltd. Brilliance Scale: 1 Faint, 2 Dull, 3 Bright, 4 Very Bright, 5 Brilliant - Gem Quality