Alexandrite appraise in the Oklahoma City on May 25 2010, at 06:59 in Contact information for Alexandrite Tsarstone Collectors Guide
You can try B.C. Clark Jewelers
101 Park Ave.
Oklahoma City, OK 73102
Visit their FB page @ http://www.facebook.com/bcclarkjewelers
and chat with them first. See if they can appraise alexandrite