Madonna‘s affordable clothing collaboration with H&M was a runaway success, and now the Material Girl is taking her design savvy high-end in a partnership with Chopard. The Swiss jeweler and musical style icon have teamed up to create a diamond “M-Dolla” knuckle ring and Happy Diamonds cross pendant necklace that Madonna dons on the cover of her latest album, Hard Candy, which is due out April 29th. Just like her new album, the jewelry is “a juxtaposition of toughness and sweetness,” Madonna explains. M-Dolla, the star’s hip-hop moniker, is spelled out across the ring in 258 brilliant-cut white diamonds. And although this bespoke piece isn’t available for purchase, the cross pendant is yours for $6710.