De Beers have taken on a new, less refined approach to jewelry with their Talisman collection. The Talisman collection features rough uncut diamonds which is a first in the mainstream jewelry market. By using uncut diamonds De Beers have created a collection which differs from any other. The Talisman collection features rings, necklaces, bracelets and cufflinks. The signet ring pictured above is made of yellow gold and features different colored rough diamonds.