I. Kassoy Inc. Vintage Pocket Manual of Diamonds, Copyright 1970. Faux Leather Bound (feels like genuine leather, but not 100% sure).

There is no official title I can find - it is simply a pocket sized reference manual for diamond dealers operating in 1970 and the early 70s.

Small 5.25" x 3.25 " Pocket Manual with historical significance! This small reference guide was one of the tools of the trade for diamond merchants in the early 1970s.

This reference guide is from I. Kassoy Inc., the Largest Distributors of Diamond Supplies and Instruments in the World.

From their headquarters on 30 West 47 Street, New York, N. Y.  I. Kassoy Inc. created the definitive guide to Diamond Cut Types, Sizing, Carats, & Pricing.

If you were a diamond broker in 1970 this pocket reference manual was your bible!!

See all the pricing information about diamonds as it was in 1970, as well as illustrations of the different types of gemstone cuts, carat sizing guide and pricing reference.

Small book is in pretty decent shape for such a vintage reference guide - there is some discoloration and page corner damage on a few of the pages.

See photos for exact condition!