Made in Japan. K18 product. This is a square-cut pendant top featuring a rare natural stone, Tanzanian-origin kornerupine. Tanzanian kornerupine is characterized by its even greater transparency and deep color, making its rarity stand out. Furthermore, kornerupine is a rare gemstone with limited discovery locations and low mining volume, making it extremely uncommon 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 2.5mm Width: Approximately 3mm Material: K18 yellow gold Stone: 1 Tanzanian kornerupine, 0.10ct The bale has an inner diameter of approximately 3mm and is oval-shaped.