Emerald is the green to a greenish-blue variety of beryl, a mineral species that also includes aquamarine as well as beryls in other colors. Gem experts differ on the degree of green that makes one stone an emerald and another stone less-expensive green beryl. Some people in the trade tend to give the name emerald to any green beryl colored by chromium. But to most gemologists, gemological laboratories, and colored stone dealers, it is more correct to call a stone green beryl when its color is "too light" for it to be classified as emerald. Even among that group, however, there's a difference of opinion about what's considered "too light." Emerald's lush green has soothed souls and excited imaginations since antiquity. Its name comes from the ancient Greek word for green, “smaragdus.” Rome's Pliny the Elder described emerald in his Natural History, published in the first century AD: “nothing greens greener” was his verdict. He described the use of emerald by early lapidaries, who “have no better method of restoring their eyes than by looking at the emerald, its soft, green color comforting and removing their weariness and lassitude.” Even today, the color green is known to relieve stress and eye strain.Genuine earth mined original green most desired shape emerald / panna gemstone All products sold by " LMDPRAJAPATIS " are imported generic and tested and can be returned easily as per amazon guidelines. So buy with trust and confidence Excellent gemstone quality in its range and gemstone is earth mined gemstone Packing: gemstone along with certificate is packed safely and beautifully Certification details:- certified from reputed laboratory, along with a product we will provide you certificate by wtgtl