Prices for the rarest stones from Rio Tinto’s defunct Australian mine have long outperformed mainstream investments ...
However, the rise of online diamond retailers has made things reasonably easier but none quite as impressive as Rare ...
A rare square 37-carat emerald owned by the Aga Khan fetched nearly $9 million at auction in Geneva on Tuesday, making it the ...
These high-value gems are now surprisingly within reach – if you go for the variety with different origins (but are still genuine).
A 300-carat rare 18th-century diamond necklace was auctioned for $4.81 million and 6.77 billion won in our money. Sotheby's, an auction house, said a rare necklace believed to have been linked ...