Humankind's fascination with precious stones long predates the establishment of gemology. The Romans believed that diamonds were splinters of falling stars, while the ancient Greeks considered them to be the tears of the gods.
원문출처 : http://www.cnn.com/style/article/why-we-value-gemstones/index.html
원문출처 : http://www.cnn.com/style/article/why-we-value-gemstones/index.html