This cist tomb—containing certain jade ornaments (Gogok jewels and tubular beads) and bronze tools—is believed to have belonged to the highest-ranking leaders of this particular Songguk-ni community as its contents align with the general elite paraphernalia of the Middle Mumun Period.
These comma-shaped amazonite ornaments alongside their tubular and circular bead counterparts have been found in other cist tombs as well as Neolithic and Bronze Age dolmens (Usan-ni in Seungju, Pyeonggeo-dong in Yeosu, Weol'am-ni in Muan, and Daepyeong-ni in Jinju).
The artifacts unearthed at these production locations consisted of finished and unfinished ornaments, raw materials, and grinding tools.
The most famous examples of Gogok in Korean art are from the Three Kingdoms period, in the crowns of Silla, earrings, necklaces, and royal girdle of Korea.
[9] Archaeological evidence suggests that Those Gogok were produced in specific areas of Japan as Magatama and were widely dispersed throughout the Japanese archipelago to the Southern Koreanic kingdoms via trade routes.