In September a cushion-shaped 5.44-carat Paraiba tourmaline ring flew past its US$60,000 ... gems known as Paraiba tourmalines come from Nigeria or Mozambique, as well as Brazil.

Discovered in Brazil in the 80s, these stones are bringing new colour to high jewellery collections I n September a cushion-shaped 5.44-carat Paraiba tourmaline ring flew past its US$60,000 upper ...