Part of the cycle The Greatest Diamonds of all time.
The De Beers Millennium Star is, at 203.04 carat (40.608 g), the world’s second largest known top color (D), internally and externally flawless, pear-shaped diamond.
The diamond was discovered in the Mbuji-Mayi district of Zaire (Democratic Republic of the Congo) in 1990 in alluvial deposits; uncut it was 777 carat (155.4 g). It was purchased by De Beers. It took over three years for workers of the Steinmetz Diamond Group to produce the classic pear form; the actual cutting was done using lasers.
It was first displayed in October 1999 as the centerpiece of the De Beers Millennium diamond collection. The collection also includes eleven blue diamonds totaling 118 carats (23.6 g) and The Heart of Eternity. They were displayed at London’s Millennium Dome over 2000.
The largest cut white (D) diamond by weight is the 1991 heart-shaped 273.85 carat (54.77 g) Centenary Diamond.