Add Yahoo as a preferred source to see more of our stories on Google. German retailer Koroit Opal Company specializes in curating and selling Australian gemstones. Koroit is not just the company’s ...

A giant opal that weighs nearly 12,000 carats received a six-figure bid at an auction in Anchorage, Alaska. The precious stone, which is split in two, was sold for $143,750 on Sunday by Alaska Premier ...

GOLD COAST, Australia--(BUSINESS WIRE)--The world’s largest online auction website for natural Opals and Gemstones has announced two new auction formats. The ‘Auctioneers Pick’ which runs every ...

Australian miners have unveiled the world's first automated device to grade opals using image analysis. CSIRO and a consortium of Australian Opal miners (Opal Producers Australia Limited) have ...

In the world of jewelry, opal inhabits a space reserved for few gems. It is classified as a “mineraloid” because it lacks crystal in its mineral makeup. It doesn’t sparkle or glitter, like most ...

JUNEAU — Nick Cline gets calls about all kinds of items people want to sell through the Anchorage auction house where he works. But he was caught off-guard by a call he got last fall from a man saying ...

Opals are some of the most unique gemstones on Earth. They range from milky white to fiery red and deep blue-green, and all have a kaleidoscope of shimmering colors within, called play-of-color. Here ...