Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy. After investing tens of thousands of ...

Straight black lines or bands often cross the patches, and these are due to polysynthetic or mechanical twin planes of the photonic crystal, merging at the surface of the gem (Kinder, 1969; Gauthier, ...

As part of its LVMH Watch Week presentation, Gérald Genta has debuted the new Gentissima Oursin Fire Opal timepiece. The ...

Tucked beneath the back of the stairs at the Ramada by Wyndham Tucson, 777 W. Cushing Street, Eritrean-born Huruy Zerzghi ...

This large Australian light opal cabochon weighs 117.85 carats. Small play-of-color flashes of orange and green predominate in a pinfire pattern, with spots of a more muted blue over a grayish ...

Discover Hip Hop icon Ja Rule's new whiskey, Amber and Opal, and his latest cocktail creation, the “Whiskquito,” in this must ...

The fourth piece in the Gentissima Oursin collection, Gérald Genta introduces the new Fire Opal model adorned with an array ...