GIA Botswana examined a rare 37.41carat pink-and-colourless bicolour rough diamond from the Karowe mine, famed for the 2,488-carat Motswedi, suggesting the gem’s two sections formed at different times
From Opera House traders to the global Bharat Diamond Bourse, Vijetha Rangabashyam traces how BDB became the shining heart of India’s diamond dream — forty-one years in the making.
