FANCY LIGHT BLUE SQUARE RADIANT-CUT DIAMOND, 0.49 CARAT For the last three decades, blue diamonds have been highly prized due to their scarcity. Less than 0.04 percent of all gem-quality diamonds show a pure blue color like this stone. Accompanied by a GIA report numbered 12531844 dated 22 May 2003, stating that the 0.49 carat diamond is natural, fancy light blue, SI1clarity, with even color distribution and no fluorescence. Origin: South Africa. Measurements: 4.52 x 4.74 x 2.65 mm