Black opal is from Lightning Ridge Australia. Solid natural black opals are the rarest opals in the world as each is so unique when formed, so rare to get 2 opals the same colour n brightness. Red fire is the rarest colour followed by orange than greens n blues but opal varies in different shades n patterns also making this one of the most unique gems in the world.black opals are best set in pendants as bright fire colours . Opal Pendants with opals from lightning ridge, which is famous for black opals, are popular as each opal is unique and distinct with different colour plays. Most black opal pendants have an opal that displays colour in its brightest fire position Black Opal Pendants are claw setting and some bezel settings. And designs can be modern ,traditional or creative with or without diamonds Black Opal Pendants are available in gold 10.14,18k all hallmarked. To purchase an black opal Pendant you can choose firstly the opal colours that are pleasing to your eye from reds to sunset to green ,blues or combination of all these opal colours.