Itoigawa Jadeite Workshop Kotaki

Itoigawa jadeite is a Japanese gem. The jadeite is characterized by the mixed colors of white and green, and shows more color variations such as blue, purple, red and black. The jadeite is a very hard and heavy jade, being called the most valuable gem in China in ancient times. The greater its transparency, the more it is prized.

In approximately 5,000 BC people had made ornaments with polished jadeites, wearing them as a symbol of wealth and power and hoping for eternal youth. The jadeites were brought across the sea and reached continental Asia.

Magatama is Japan’s own specific design with curved, comma-shaped bead and it is said that they symbolize a fetus, tusk, the moon and even the soul. A magatama is one of the Three Sacred Treasures of Japan (a mirror, a sword and a magatama) handed down through the imperial generations. The mining of Itoigawa jadeite has been prohibited from 1956 and our workplace has made accessories like bracelets and pendants by using valuable raw ore stocked in our warehouse.


©Itoigawa Jadeite Workshop Kotaki


2-2-5, Ote, Matsumoto-shi, Nagano, 390-0874, Japan

7 min. walk from JR Matsumoto Station
10 minutes by car from the Matsumoto Exit of the Nagano Expressway
Parking (passenger car): Available (around the facility) for a fee
Parking (tour bus): Available (large, medium parking spaces around the facility)


Admission fee Free
Working days and hours 9:00 - 17:00
Closings Varies
Visitor capacity 5 - 10
Time required for a tour 30 minutes
Language Japanese
Reservation Required
Tel: +81-263-36-3092
Reservations pageExternal site: a new window will open.
Other conditions Tour will be given in Japanese
Reservation required for tour

©Itoigawa Jadeite Workshop Kotaki


Tel: +81-263-36-3092