Jewelry retailer Tiffany & Co. announced that its stockholders have appointed Robert Singer to its board of directors. He will chair the board's audit committee and replaces Thomas Presby, who has retired.

Singer has held a variety of senior-level corporate positions including chief financial officer of Gucci Group. Earlier in his career, he was a partner at Coopers & Lybrand, a global accounting firm.

Singer's appointment brings the board's total to nine.