Upcoming Events



What we offer

JAH March Jewelry Auction
Online Viewing: March 13th - March 19th JST
Online Bidding: March 18th - March 19th JST
Bangkok Viewing: March 2nd - March 5th

4th JAH Website Pointer Auction
Online Viewing: March 9th - March 12th JST
Online Bidding: March 11th - March 12th JST
Contact us in case of queries/information

DiaDemands
We pride ourselves in valuing our dear customers. Customers are invited to submit diamond requests, especially when items with their specifications are not covered in our auctions or sales events.
Buy with confidence. Buy with ease.
Advanced Imaging Technologies
We utilize cutting edge imaging technologies to give our customers utmost convenience and confidence when shopping with us. All products come with numerous high definition images, along with 360 degree videos.
Recognized Certifications
All of our products are certified for their quality. We offer a range of different certifications, notable types include GIA and CGL.


Unmatched Reputation
With more than 30 years of experience in the Diamond and Jewelry auction business, Japan Auction House has become synonymous with the word "trust".

About Us
Japan Auction House is a branch of Rich Diamonds. We are an innovative and progressive group, focused on continuing our global presence in the evolving diamond market. We derived our reputation as a dealer in the finest made diamonds and manufacturer of diamond jewelry.Japan Auction House enjoys an unparalleled supply of rough diamonds, sourced from the major companies. We collect from pawn shops and auction associations. We are pioneers in the second hand good and auction market, and have more than 20 years of experience.