The discerning reader will notice a similarity in title between this comprehensive volume and the book known as 'Gems from the Equinox'. We feel this book is a superior product because, unlike Gems, this tome does not have 250pp of sarcastic reviews. In that other volume, editor Israel Regardie noted the difficulty of organizing the contents by subject matter, citing that some instructions included both Yoga and Magical references. We have tackled that problem by organizing the material by the grade in which it is to be worked. Thoughtful consideration has led us to move a very few of these instructions in an effort to make the whole system easier to comprehend.Here is a partial list of items in Diamonds, that are not in Gems: The Praemonstrance of the A.'.A.'., The Curriculum of the A.'.A.'., Students Reading List, Liber E Supplementary Instruction in Asana, Postcards to Probationers, X-Rays on Ex-Probationers, The Treasure House of Images, A Description of the Cards of the Tarot, Liber Gaias, The Earth, Liber Viarum Viae, The Dangers of Mysticism, The Training of the Mind, A Note on Genesis, Science and Buddhism, The Soldier and the Hunchback, The High History of Good Sir Palamedes, The Chymical Jousting of Brother Perardua, Aha , Across the Gulf, Adonis, Two Fragments of Ritual, The Wake World, The Ritual Proper for the Invocation of the Augoeides, Thien Tao, The Evocation of Batzibel, The Ship, The Three Worms and The Rites of Eleusis.