"A Treatise on Diamonds and Pearls" is a 1751 handbook on valuing diamonds and pearls, with information on their manufacture, maintenance, history, and more. This vintage book will be of considerable utility to jewellers and antique dealers, and it would make for a fantastic addition to gemmology collections. Contents include: "Of The Production of Diamonds, and the Principle of Valuing Them", "Of Brilliant Diamonds, and The Method of Manufacturing Them", "Of the Sizes or Expansion of Brilliants", "Of The Use of the Brilliant Sizes in Discovering ill Wrought Ones", "Of the Method of Manufacturing, and Valuing Spread Brilliants", etc. Many vintage books such as this are increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with the original text and artwork.