Latest Auction

133ct. Yellow Diamond to Lead Sotheby’s New York

Unmounted stone has a high presale estimate of $5 million.

Cushion brilliant-cut, 15.48-carat stone is top seller at Hong Kong Magnificent Jewels auction.

London Jewels auction will also feature several single-owner collections.

More than 210 items will go under hammer at Precious Aid sale.

3.06-carat stone expected to go for up to $300,000.

Fancy-intense-orangy-pink stone will lead December 5 John Moran sale.

Pair, containing oval mixed-cut stones weighing 12.20 and 11.96 carats, will lead New York Magnificent Jewels sale.

Diamonds dominate top 10 lots of December 6 Important Jewelry sale.

Ring with 103.62-carat yellow diamond leads sale at $2.5 million.

Auction house sells more than 200 pieces in Geneva for nearly double their expected total.

Luxury groups are reporting strong sales at their jewelry maisons. Why isn’t the diamond trade reaping the rewards?