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 ...

Getting your Trinity Audio player ready... A rare gemstone discovered decades ago in a now-closed Colorado mine could sell for thousands of dollars in an October auction. Bidding for the chunk of ...

Series headliner is followed by 4 additional days of antiquities and ancient art plus a separate March 10-11 auction of ...

JOHANNESBURG (miningweekly.com) – London-listed Gemfields marked a “record revenue” year after its third auction of the year achieved revenue of $36.5-million after selling 15 of the 17 lots of ...