Company Information

  • business


President Michio Yokokawa

Michio Yokokawa, President

Our mission is to create personal adornments that allow people in Japan and throughout the world to enjoy the beauty of gemstones and to experience the comfort that wearing them brings, and that are worthy of being passed down from one generation to the next.

Gemstones are entrusted to our care by Nature. Each and every one is endowed with its own rich and unique character. It is our hope that this website will be of assistance to all people who enjoy gemstone-oriented jewelry.

Chairman Yasukazu Suwa

Yasukazu Suwa, Chairman

Company Profile

Suwa and Son Inc.
1-1-8, Hirakawacyo, Chiyoda-ku, Tokyo, 102-0093, Japan
Michio Yokokawa (President)
100,000,000 yen
Main Bank
MUFG Bank, Kyobashi branch
Main: Chiyoda-ku, Tokyo
USA Office: California

Scope of Business

SUWA Gemstone-Oriented Jewelry Sales

SUWA's gemstone-oriented jewelry is sold in department stores and jewelry specialty stores in Japan, and overseas in fine jewelry stores, mainly in the United States, at 37 stores in 27 metropolitan areas.

Loose (Unmounted) Stone Sales

Loose (unmounted) diamonds and colored stones are procured from cutting centers around the world and wholesaled to manufacturers and retailers. Beauty and the presence of defects are personally confirmed by our buyers to judge quality. Using knowledge acquired through years of experience to confirm the beauty and imperfections of each type of gemstone, and applying our understanding of gemstone market conditions, allows us to provide loose stones of the finest quality.

OEM Manufacture of Gemstone-Oriented Jewelry

As an OEM supplier of jewelry for major brands in Japan and the United States, SUWA is recognized for our ability to procure component materials and for our exceptional manufacturing techniques.

O&R (Order and Remodel) / Jewelry Remodeling

Jewelry that no longer complements the owner's style or age due to the passage of time is remade into a new design. The order and remodel business extends the useful life of valuable gemstones.