Made in Japan. K18 product. An oval-cut pendant top that captures the mysterious brilliance of peacock tanzanite. The enchanting color, with a hint of pink peeking through the blue, is captivating. It has pleochroism that changes with the angle of light, allowing you to enjoy a delicate and beautiful sparkle. Tanzanite is a highly valuable gemstone found only in the Merelani Hills of Tanzania, Africa. Its deep blue-violet color emits a special brilliance that combines intelligence and dignity. Stamped with K18. Size: Approximately 3 x 5mm Material: K18 Yellow Gold Stone: 1 Tanzanite (0.25ct) The bale has an inner diameter of approximately 3mm and is oval-shaped. *Tanzanite is a delicate gemstone. With a hardness of 6-7, it is relatively soft and easily scratched. Avoid ultrasonic cleaning and handle with care. Natural stone pendant top / Tanzanite / K18 / 18k gold / Color stone / Rare stone / Oval cut / Non-allergenic