Made in Japan. K18 product. This is a pendant top featuring a beautiful purplish-blue, oval-shaped natural tanzanite gemstone. A rare gemstone found only in the Merelani Hills mines in Tanzania, Africa. Tanzanite has a mysterious purplish-blue color that reflects the night sky. It has a calm blue brilliance and exhibits pleochroism, changing appearance depending on the viewing angle and light. It has a high luster and transparency, making it beautiful. Stamped with K18. Size: Top approximately 4mm x approximately 6mm Material: 1 tanzanite (0.45ct), 18k yellow gold Bail inner dimensions: Approximately 3mm wide, approximately 5mm long ※ Tanzanite is a delicate gemstone. With a hardness of 6-7, it is not very hard and is easily scratched, so please take care when handling and cleaning, such as avoiding ultrasonic cleaning. Tanzanite pendant top Tanzanite accessories Natural stone accessories Natural stone charm