jack ##son , of Evening Shade , Arkansas , discovered the diamond on Thursday at corner of Diamonds State Park . The 3.69-carat gem is teardrop - shaped about the size of a pinto bean . Park interpreter said it 's the largest of the finest diamonds found this year .
Susie Clark , of Evening Shade , Arkansas , found the diamond on Thursday at Crater of Diamonds State Park . The 3.69-carat gem is teardrop-shaped about the size of a pinto bean . Park interpreter said it 's the largest of the 122 diamonds found this year .