Akasaka Unibase strives to contribute
to people's happiness through jewelry.
Guided by the concept of "Happy Life with Jewelry,"
we engage in a wide range of business activities.
Our Business
Retail Sales

Akasaka Unibase is headquartered in Okachimachi, Tokyo, one of Japan's largest and most renowned jewelry wholesale districts. Leveraging our position as a leading manufacturer-direct business, we operate multiple retail brands that offer unparalleled quality, an extensive selection of designs, and exceptional customer service.
GALA JEWELRY
Okachimachi Flagship Shop
At our Okachimachi flagship shop, you can fully immerse yourself in the world of GALA, a brand with more than half a century of history. Located in a specialized district where both retail customers and professional jewelry traders converge, we offer an exceptional selection of products with a focus on quality and variety. From bridal jewelry to fashion jewelry, our collection spans a wide range of styles to meet every need.





Located on the first floor of the GALA JEWELRY Okachimachi flagship shop, "Alagin" is a groundbreaking concept in the realm of heirloom jewelry, envisioned by GALA JEWELRY.
This innovative brand showcases a unique and versatile collection, featuring pre-owned masterpieces from esteemed luxury brands like Cartier, Van Cleef & Arpels, BVLGARI, and Tiffany, alongside vintage finds and stylish, affordable pieces. Alagin seamlessly blends elegance, value, and creativity, redefining the art of previously owned fine jewelry.



Twice a year, we host the "GALA Festival," which attracts over 2,000 visitors each time and has been met with tremendous acclaim.
g-Lab. is a comprehensive "Jewelry Consultation Room" designed to address all inquiries related to jewelry. From jewelry remodeling utilizing a wide variety of mounting designs to expert repairs performed with the advanced techniques of a manufacturer, g-Lab. provides exceptional services.
Furthermore, as an interactive community space where people can enjoy and connect through jewelry, we offer the following services:
- Hosting jewelry-making experiences and workshops
- Selling jewelry-making tools and loose stones
- Selling jewelry-related books
- Offering a café for jewelry enthusiasts to connect
GALA SDJ Ginza Flagship Salon

GALA SDJ Ginza Flagship Salon is a reservation-only boutique specializing in the finest, carefully selected diamonds.
At GALA SDJ, we utilize the globally recognized Sarine Light™ system, which quantifies and evaluates the core elements of a diamond's value—its "beauty" and "brilliance." Among these, we proudly offer diamonds of the highest quality, carrying the prestigious Sarine Ultimate designation.

Our Business
Manufacturing & Wholesale

Our in-house factory, "JAPAN CRAFT," is located in Niigata. At Akasaka Unibase, we do not outsource manufacturing to subcontractors; instead, our skilled artisans craft each piece of jewelry with precision and care.

Our wholesale division, "GOSHO," boasts one of the industry's largest collections of jewelry mount designs. With approximately 36,000 models, including rings, pendants, and jewelry parts, GOSHO leads the way in offering variety and quality.
GOSHO serves over 1,500 clients nationwide, ranging from department stores to local jewelry shops, establishing itself as one of Japan's premier manufacturers of jewelry mounts.

Akasaka Akoya Pearl Division

The Akoya pearls used in AKASAKA AKOYA PEARL are sourced exclusively from a selected group of pearl producers who adhere to the highest quality standards.
From nucleation to cultivation, harvesting, and pearl selection, every step is entrusted to a limited number of seasoned pearl farming professionals. This ensures that we deliver only the finest quality Akoya pearls to our customers.

Exhibition Achievements in 2024
Akasaka Unibase has built a strong track record through active participation in both domestic and international exhibitions.
■Domestic Exhibitions
Jan. | IJT International Jewelry Show |
May. | IJK Kobe International Jewelry Show |
Jul. | TJF Tokyo Jewelry Festival |
Aug. | JJF Japan Jewelry Fair |
Oct. | IJT Autumn International Jewelry Show |
■International Exhibitions
Jan. | Hong Kong International Jewelry Show |
May. | Jewellery & Gem Asia Hong Kong |
Jul. | Singapore International Jewelry Show |
Aug. | Jewellery & Gem World Hong Kong |
Oct. | Hong Kong International Jewelry Manufacturers' Exhibition |
Strengths
Our Advantages

At Akasaka Unibase, we meet all jewelry-related needs through our integrated approach to manufacturing, wholesale, and retail.
From producing high-quality jewelry mounts to processing, repairing, designing, and appraising jewelry, we handle every aspect in-house. In our retail division, we offer a wide range of products, including bridal rings, fashion jewelry, and even pre-owned jewelry. As a comprehensive jewelry company, we are equipped to provide a diverse array of services and products under one roof.
Company Infomation

Company Name: Akasaka Unibase Inc.
Founded: May 1968
Business Activities:
Manufacturing, wholesale, and retail of jewelry
Head Office:
GOSHO Headquarters Building, 5-21-14 Ueno, Taito-ku, Tokyo, 110-0005