One of the most popular gems throughout history, diamonds are the birthstone for this month, and these stones are linked to love, eternity and strength. This has contributed towards diamonds being the most popular gems of all time when it comes to romance, such as engagement rings and wedding bands. Diamonds are very strong and hardwearing, making them the perfect birthstone to wear on a daily basis. You can enjoy many different cuts of this stone, and the fiery, glamorous sparkle given off by diamonds is positively captivating.