RDI has upgraded its Web site, www.rdidiamonds.com, to immediately indicate when a diamond is added or sold from the wholesale inventory. Every site linked to www.rdidiamonds.com is live as well, and jewelers with active accounts who wish to have a live inventory link on their Web site can do so for free. For more information, contact RDI Diamonds, Rochester, N.Y.; (800) 874-8768, ext. 108, e-mail: lenny@rdidiamonds.com.