These " Rare Stone" striking cufflinks are limited edition. The oval shaped black diamonds are 6.50 carats, it weighs 17.39gr & set in 15.99gr of 18K black gold. Around the case are set 60 white diamonds that is 0.52carats, with colour GH & clarity VVS1. The black diamond originated in Africa. Only with Tateossians signature hand craftsmanship can such a unique pair of cufflinks be made. Please note: Rare Stones pieces are made to order. Please call us on 02073848336 to estimate delivery time