B2B online auction site of high-quality products
offered by a leading Japanese auction company to buyers around the world.

Responsible and schedule coordination


One of Japan's leading auction with a wide variety of high quality items purchased through an in-house network.
We offer auctions with an impressive lineup of the best products and the best buyers from Japan to the world.

  • Over​ ​


    Products Available

    Precious Stones and Metals, Luxury Watches, and Other Luxury Listings

  • all over the world

    Bidding from

    We held our auction completely online. Participate anywhere, anytime you want.​ ​

  • Bid acceptance rate of00%


    High bid acceptance rate achieved by providing quality products and places

  • High Quality


    Achieving high quality through our integrated in-house system from buying to listing

  • Reliable

    and care

    Reliable appraisals and maintenance by qualified personnel and technicians

  • Multi- language


    Support for buyers and sellers all over the world. Feel free to contact us and we are ready to help from our closest office near your country

How our auction works.

Listing Categories

STAR BUYERS AUCTION handles the following 5 categories of products.


Every Month Auctions are held twice a month  on the 1st week the 3rd week.

Deadline for bidding

Watches, accessories, small items, apparels, shoes, and silver brands
on the 1st & 3rd Tuesdayof every month
Branded jewelry, non-branded jewelry, and bags
on the 1st & 3rd Wednesday of every month

* The auction starts at 9:00 (JST) on Thursday of the week before the bidding deadline.
* The deadline for bidding on accessories, small items, apparel, shoes, silver brands, branded and non-branded jewelry is 15:59 (JST) on the day.
The deadline for bidding on watches, and bags is 17:59 (JST) on the day.
* There is a function for the automatic extension of the bidding deadline (in 5-minute increment)

Responsible and schedule coordination


  • Winning bid fee

    Watches, brand jewelry, non-branded jewelry, bags, accessories, small items.
    Apparel, shoes, silver brand
    10 %

    * Consumption tax will be charged separately.

  • Listing fee

    Listing fee per item
    550 yen (tax included)
    Unsuccessful auction fee per item
    550 yen (tax included)
  • Listing sales amount

    Pay 95 % of the winning bid

    * Consumption tax will be charged separately.
    * A sales contract with us will be concluded by the digestion purchasing method.

Learn more about auction participation.

How to register

STAR BUYERS AUCTION are for businesses only. Only registered members can participate.

  1. STEP 1

    Register Member Information

    Please use the registration form to enter your company's information, and contact person's information. We will send you instructions on how to register your images as soon as we have confirmed your information.

  2. STEP 2

    Required documents for image registration

    You will be required to submit your personal identification documents for the screening process. Please log in from the URL that was sent to you, and submit your personal identification documents.

    *You will be required to submit images of both front, back, thickness of your ID, photo identification, and all the information pages of your antique dealer’s license.

  3. STEP 3


    We will review your application in accordance with our standards based on the information you have registered.​ ​

    *Depending on the results of the review, it may not be possible to register. Thank you for your understanding.

  4. STEP 4

    Account is granted,
    start use

    After reviewing process is completed, we will send the account information for the membership page to your contact person. All transactions can be done online, including auction previews, listings, and bids.

SBA Magazine

We will deliver useful information for utilizing STAR BUYERS AUCTION

How to choose a good auction as a seller
Rolex watches in B2B Auctions: Why are they so popular, and what are the tricks to good purchasing?
350 participating corporate buyers from around the world: Why buyers all over the world choose Star Buyers Auction
More than 25,000 products available each time! How can Star Buyers Auction have such an abundant lineup? We interviewed the people in charge to find out.
Online Auctions in Japan: What brands and products are people looking for?
What are the most popular luxury watch and jewelry auctions in the world?

Valuence Group

Aiming to be 
a hub in the reuse industry.

The Valuence Group is engaged in various services related to reuse, and performs all processes from purchase to display, in-house. In buying operations, we have developed more than 70 stores of branded goods, antiques, and art buying specialty stores, including Nanboya, across Japan. In sales operations, we run online auctions of branded goods, antiques, and art in Japan, and B2B auctions of diamonds in Hong Kong. Ever since we started our business, the number of registered dealers are growing continuingly, and we are now supported by buyers from all over the world. We aim to be a hub in the reuse industry, that connects the value of goods, with our overwhelming product lineups and quality, leveraging the strengths of our in-house purchasing.
In terms of purchases, we have a brand purchase specialty store and an antique / art purchase specialty store, including Namboya, which has more than 70 stores nationwide.
In terms of sales, we operate an online auction of branded products, antiques and fine arts in Japan, and a B2B auction of diamonds in Hong Kong.
Since its inception, the number of registered companies has continued to increase, and now it is gaining the support of buyers from all over the world.
We aim to be a hub in the reuse industry that connects the value of goods with an overwhelming product lineup and quality that leverages the strengths of our own purchasing.

Valuence Group

  • Purchase

    We provide purchasing services for branded goods, antiques, and art objects across the country in the hope of delivering the goods our customers have loved to the next person who needs them.

    Purchasing Branded Goods
    Buying Antiques
  • Inspection, Assessment

    Every step is managed in an integrated manner in the database of our proprietary system, from buying to inspection, assessment, listing, and sales.

    Valuence Brain
  • Listing

    In addition to our buying business, our B2B auction business and B2C retail business, serve as another pillar in our efforts to promote reused goods.

    Auction Services
    Retail Services (Sales)

Experience the outstanding lineup and quality of