Gems World JM Co., Ltd

有限会社ジェムスワールド JM 

4F Towa Building, 5-15-17 Ueno, Taito City, Tokyo 110-0005, Japan 

Phone: +81 (0)3-5807-1541 

Email: info@gemsworldjapan.com 

Business Hours: Monday to Friday, 10:00 AM – 6:00 PM (Japan Standard Time) 

We also participate in major International Trade Shows in Japan, Thailand, Hong Kong, and the United States. Contact us to schedule an appointment or inquire about our next exhibition. 

Our Offices 

• Tokyo, Japan (Headquarters): Sales, wholesale, and customer support 
• Kofu City, Yamanashi Prefecture, Japan: Jewelry manufacturing and domestic distribution 
• Jaipur, India: Gemstone sourcing, grading, and export operations