Glass production flourished when forming technology was developed in Rome. The glass crafts formed by blowing soda glass were called the ‘Roman glass’, and they quickly spread to other areas through commercialization. Many glass beads and vessels found in the old tombs of Shilla also belong to the ‘Roman glass.’ We assume that it was transmitted to Korea through Central Asia. Since most of the artifacts were discovered in the royal tombs along with glamorous accessories and golden crowns, we can also assume that glass crafts were expensive materials mainly enjoyed by kings and their royal families. The glass discovered at Cheonmachong of the Shilla Empire is dark blue with beautiful patterns. The body narrows toward the bottom, which is round and flat to support the body. The surface has two patterns. Right below the area where the lips touch are long stripes, and beneath it is the pattern of a turtle’s shell. It was created by blowing the glass liquid into a frame with stripes and patterns. Also, such a clear and almost no air bubbles glass implies that it was created by a skilled master. This kind of glass could be abundantly found among the 4th-5th century relics in East Asia, southern Russia, West Asia, and Europe, so we can’t tell where it was exactly produced. However, it is clear that the ruling class of the Shilla Empire was mesmerized by the beauty of such type of glass, which was widely traded.