Sumit Diamond Corp., purveyor and manufacturer of diamonds and diamond jewelry, has moved to 592 Fifth Ave. in New York City. The move comes in conjunction with a company expansion and the launch of the TARA Collection by Sumit, an array of diamond line bracelets in 14k and 18k gold and platinum. For information, contact Sumit Diamond Corp., 592 Fifth Ave., New York, NY 10036; (212) 221-8030 or (800) 522-0890, fax (212) 921-8638, e-mail: info@sumitdiamond.com.