Precious stones, these treasures of the earthly bowels, at all times attracted the close attention of man, as if they were created not by nature, but by higher mystical forces. Diamonds, emeralds, rubies and sapphires accompany humanity along the entire path of its development, symbolizing power, strength, confidence and well-being. Some of them give glory and wealth, others bring misfortune, sorrow and disappointment. What is the true power and magic of precious stones? What is their true value and value? What magical powers do they possess? All this is narrated by the book of the gemologist and traveler Patrick Vuayo.