In September a cushion-shaped 5.44-carat Paraiba tourmaline ring flew past ... Paraiba tourmalines is their distinctive neon or electric greenish-blue colour, which is unique among gemstones ...
Pomellato's striking Barocco necklace combines a large free-form Paraiba tourmaline centrepiece ... tourmalines is their distinctive neon or electric greenish-blue colour, which is unique among ...