Antique Black Opal and Diamond Halo Ring, French 18k and Platinum 29" 2 mm at the back

2 mm at the back

narrows gracefully to 1

the Chester town mark

Surrounding the ruby

worthy of recognition by St

Antique Black Opal and Diamond Halo Ring, French 18k and Platinum 29" 2 mm at the backThere are opals and then there are Lightning Ridge opals, stones so rare and so fiercely beautiful they seem almost otherworldly; this is one of those. A great pool of midnight blue shot through with swirling ribbons of teal, cerulean, and violet, the kind of color you expect to see only in deep ocean water or in the sky just before a storm breaks. Lightning Ridge, in New South Wales, is the most important source for true black opals the rarest and