"I wanted to thank you again for the outstanding support you gave me during the last two weeks.  The information I gained from reading your book, and from corresponding with you via e-mail, gave me a tremendous advantage in making my diamond purchase.  I was able to identify honest diamond dealers from dishonest ones, select a diamond of outstanding quality, and negotiate a fair price.  As a result of your recommendation, I was also able to locate a local gemologist who could evaluate and appraise my diamond.  I cannot imagine making a purchase on this magnitude without the information contained in the IGS Diamond Buyer's Guide.  I recommend your services unequivocally to anyone preparing to make the same purchase. 
Thanks again!

       Charles Camp
       Houston, Texas
       June 26, 98