Yuda, Japan
Goko Shokai, or Goko, designs, plans, manufactures, distributes, and sells original jewelry, ranging from platinum and K18 products to high jewelry and fashion rings. The company's headquarters is located in Kofu, Yamanashi, Japan, at the address 2-10-7 Yudan, Kofu-shi, Yamanashi 400-0864. Goko participated in the JJF2026 Japan Jewelry Fair in August 2026 and the IJT Autumn 2025 international jewelry exhibition in Tokyo. The company was founded 50 years ago and celebrated its 50th anniversary in 2026. Goko has been active in the jewelry industry for a significant period, showcasing its commitment to the sector.
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