Emerald: 0.40 total carat weight; 14K yellow gold; 16"L; pendant: 0.4"L; Spring ring closure; Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care; Photo may have been enlarged and/or enhanced; All gemstone carat weights (tcw) are approximate; variance may be 0.05 carat.; Emerald is a May birthstone; Imported