Made in Japan. K18 product. This is a square-cut pendant top featuring the rare natural stone, Tanzanian-origin kornerupine. Tanzanian-origin stones are characterized by their even greater transparency and deep color, making their rarity stand out. Furthermore, kornerupine is a rare gemstone with a limited discovery location and low mining volume, making it extremely rare in the market. It has a high hardness and excellent durability, allowing you to enjoy its beauty for a long time. This is a recommended item as a reward for yourself or as a gift for someone special. Stamped with K18. Size: Approximately 3mm Width: Approximately 4mm Material: K18 yellow gold Stone: 1 Tanzanian-origin kornerupine, 0.20ct The bale has an inner diameter of approximately 3mm and is oval-shaped.