C.D. Peacock, Chicago's oldest fine jeweler, recently relocated to larger retail space in Northbrook, Ill. The move follows the opening in 2000 of two new downtown stores on Michigan Ave., for a total of five locations in the Chicago area. The Northbrook Court store features luxury watch and jewelry brands including Rolex, Cartier, Patek Philippe, Bulgari, Bertolucci, Grimoldi, Paneri, Scott Kay, Mikimoto, Favero, Roberto Coin, and Yvel. The store also offers a large selection of diamonds including the 20.65-ct. internally flawless Peacock Diamond, a fancy intense yellow diamond.