De Beers London - Talisman Medal 18-Karat Gold Diamond Necklace - One Size

De Beers' necklace is part of the 'Talisman' collection, which pays homage to the "ancient appreciation" of rough diamonds that were once considered lucky charms. Cast from 18-karat gold (750), it's strung with a 'Medal' pendant that's hand-hammered using the label's 'serti poinçon' technique and set with diamonds, including both polished and raw ones.