18KT GOLD PLATED OPAL CUFF LINKS WITH BLUE GREEN FLASH Highly sophisticated and from the mines of Lightning Ridge, Australia. These bright blue and green genuine Australian Opal Cufflinks are set in high quality 18kt Gold Plating. These Opals are electric blue and filled with greens and plenty of fire. The perfect gift and an ideal accessory for any man! This Opal is ethically sourced, 100% genuine from quality mines in Australia. TOTAL WEIGHT : 11.60GRAMS ITEM DIMENSION : 10 X 15MM COLOR : BLUE, GREEN PATTERN : BROAD FLASH BODY TONE : N7 BRIGHTNESS : B5 OPAL TYPE : TRIPLET OPAL OPAL SOURCE LOCATION : LIGHTNING RIDGE, AUSTRALIA ADTL. INFO. : BRIGHT RAINBOW COLORS CHANGE DRAMATICALLY IN OPAL BECAUSE OF THE DIFFRACTION OF LIGHT PASSING THROUGH TINY SILICA SPHERES IN ITS MICROSTRUCTURE. WE HAVE USED CLOSE UP PHOTOGRAPHY, ITEMS MAY APPEAR LARGER THAN ACTUAL SIZE DEPENDING ON SCREEN SIZES