Bidspirit auction | 1967 American Gem Society Diamonds

1967 American Gem Society Diamonds Educational Booklet - This vintage consumer educational booklet was published by the American Gem Society in 1967. Titled Diamonds, the pamphlet serves as a guide for the public on the history, terminology, and technical grading of diamonds. The booklet features a vibrant turquoise-blue cardstock cover with a cursive script title and illustrations of four diamond cuts. The interior contains 35 numbered pages including black-and-white photography of gemological equipment such as a Diamondscope and precision scales. Technical diagrams illustrate the effect of various cut proportions on the stone's brilliance and value. The text provides guidance on the four C's of diamond grading and quotes from historical figures, including Pliny the Elder on the back cover. The publication was printed in the United States and is bound with two metal staples. Height: 6.125 inches Width: 3.5 inches. The cover is in good condition with light surface wear and minor rubbing along the spine and edges. There is a small, faint vertical crease at the bottom center of the front cover. The interior pages are clean and well-preserved, showing no signs of foxing, moisture damage, writing, or dog-eared corners. The staple binding remains secure with no significant oxidation.