Green beryl is called emerald. Or is it? An online search of green beryl -v- emerald will yield as many potential answers as search results itself. The naturally verdant gemstones were popular way before Cleopatra staked a claim and hoarded the colorful sparklers. Royalty has latched onto these lively stones ever since; adoring the insinuations that the color hints to new birth, spring, and life in general.