That honor belongs to the so-called Blue Belle, a diamond necklace that is centered on a 392.52 carat sapphire that surfaced in Ratnapura, Sri Lanka, in the 1920s. The Blue Belle.

However, once her 3.4 carat sparkler arrived, she discovered it looked and felt different from the mockup and 3D model she had approved.

David Anderson holding the 3.29-carat brown diamond, which he discovered in Crater of the Diamonds State Park on March 4. Arkansas Department of Parks, Heritage and Tourism ...

Over his many visits, Anderson has found more than 400 diamonds, including 15 weighing more than 1 carat. His other top finds include a 3.83-carat yellow diamond found in December 2011 and a 6.19 ...