The Four Precious Gemstones of the World
The “Big four” Precious gemstones For centuries, four gemstones have reigned supreme in royalty, romance, and legend—discover what makes diamonds, rubies, sapphires, and emeralds the world’s most coveted treasures. Diamonds, Rubies, Sapphires, and Emeralds — The Crown Jewels of Nature Across cultures and centuries, gemstones have been revered not only …