Sell GIA Diamonds in Japan

Sell GIA diamonds in Japan to our experts. We provide honest price quotes and are on hand to answer all and any of your diamond selling questions. Sell online or via appointment in Tokyo: our process is safe, free of charge and can take as little as 24 hours. We buy your diamonds directly: there are no auctions, middle-men or commissions deducted from your final price. As leading international diamond buyers, we work with hundreds of customers on a daily basis, buying diamonds of 0.25ct and larger.

Get Your Offer

Sell GIA Diamonds in Japan in as little as 24 hours

How to sell GIA diamonds and diamond jewelry in Tokyo

Our trustworthy selling process is designed to be as fast and convenient as possible.

Complete our online
valuation form

Receive your initial valuation
by phone or email

Ship us your items fully insured
via FedEx at no charge
or make an appointment

A member of our team will
contact you with a full
valuation and offer

If you accept, payment can be
received within 24 hours

How to get the best prices for GIA certified diamonds

Our team of GIA trained gemologists understand the value of your diamonds. As leaders in the industry, we can accurately assess and price your loose stones and jewelry based on the second-hand diamond market. We factor in every detail of your piece, analyze the market and demand, and provide you with a cash offer. There are no hidden fees or lengthy waits as we list and auction you items on your behalf. We buy your diamonds outright, at no cost to you.

About WP Diamonds

WP Diamonds was established by industry veterans in 2012. Realizing the lack of trustworthy and convenient options for selling diamonds, designer jewelry and luxury watches, WP Diamonds was launched as the modern and professional alternative to auction houses or pawnbrokers. We pride ourselves on offering a fast and high-end selling process with strong prices and customer service at the heart of what we do. With offices in Tokyo, Hong Kong, the US and the UK, contact us today for your price quote.

We believe that selling diamonds should be as enjoyable as purchasing them

Advantages of selling GIA certified diamonds

The GIA (Gemological Institute of America) is the most respected and authoritative diamond grading laboratory in the industry. They have set the standard in diamond grading and continue to pioneer technological advancements and innovation. With offices in major diamond cities around the world, GIA set the standard for grading practices worldwide.

Grading reports produced by the GIA are highly accurate and trustworthy. While some grading laboratories inflate grades to better help sales at retail, GIA has remained fair and truthful in their evaluations. Simply provide us with your GIA certificate number, or a copy of the GIA certificate, and we will be in touch with your price quote.

Can I sell the whole piece or just the diamonds in my jewelry?

Either! We are happy to offer on the center stone only or the entire piece (factoring in the metal and any side stones).

Contact Our Experts in Tokyo

Our team of industry veterans are located in Tokyo, New York, Hong Kong and the UK.  We have aligned ourselves with the GIA’s strict diamond grading standards. We look forward to being of service and would be delighted to answer any questions you may have about selling or upgrading your diamonds.

CALL 03-6689-3653

Our Experts have been GIA trained and grade to GIA standards.

Upgrade your diamonds today

We are proud to offer an upgrade program through our sister website. Sell for cash or get an extra 10% more on your offer when you opt for store credit. Trade in your GIA diamonds for diamond jewelry, loose diamonds, luxury watches or handbags.