The birthstone for May, has been beloved for millennia, evoking rebirth and renewal. Today, it's the gemstone given for the 20th and 35th wedding anniversaries. From Egyptian pharaohs to Inca emperors, emerald has enchanted royalty. Given the rich green hues of the emerald, it was inevitable that we would fall under its spell. If you or your partner dream of something unique and exotic, an emerald engagement ring could be the perfect choice.