A 5.40-Carat Kashmir Sapphire Could Fetch $500,000 At Phillips Auction

Phillips auction house will present a selection of important colored gems, signed jewels and sculptural gold designs at its ...

3.13-Carat Blue Diamond Could Fetch $5.5 Million At Bonhams Auction

Bonhams also announced that it will move its U.S. Flagship to 111 West 57th St., New York, home to Steinway Hall and the ...