Specialist Diamond Buyers in Japan

Sell diamonds, engagement rings and diamond jewelry to the experts. Our team of diamond buyers in Japan are GIA trained gemologists and industry veterans with the necessary knowledge of the second-hand diamond market to provide you with the best prices. We buy your diamonds directly: no fees or commissions deducted from our prices and the entire process can take as little as 24 hours. We pride ourselves on providing a streamlined, professional and trustworthy selling process.

We specialize in buying cut and polished diamonds of 0.25ct and larger. From loose diamonds to diamond engagement rings, our experts are on hand to provide price quotes and final prices.

Get Your Offer

Sell online or schedule your appointment in Tokyo

How to sell Diamonds in Japan

Just like your diamonds, our process is unique. We want to give
you the most accurate price and make sure that we insure your
items for the right amount, so we ask that you fill out an initial
valuation form. Don’t worry, it’s easy. And if things don’t work
out, we send your items back to you free of charge.

Complete our online
valuation form

Receive your initial valuation
by phone or email

Ship us your items fully insured
or make an appointment
in Tokyo

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

If you accept, payment can be
received within 24 hours


Click on an area below for more information

Sell diamonds in Tokyo

What is my diamond worth?

Why sell to WP Diamonds

Contact our expert diamond buyers in Japan

What we buy

Sell Diamonds in Tokyo

Looking to sell diamonds and diamond jewelry in Tokyo? Our experts are located in central Tokyo and are available to evaluate and make cash offers on your diamonds. Appointments typically last 30 minutes and are available Monday-Friday. Schedule your appointment today.

Appointments are free and there is never any obligation to sell. Whether you are looking to sell an engagement ring or just the center stone, we are happy purchase diamond jewelry or loose stones. We also offer an upgrade option whereby you can sell diamonds, jewelry or watches for store credit, for 10% more than cash offers.

What is my diamond worth?

This will depend on a variety of factors including:

  • The quality of the stone: color grade, cut grade, clarity grade, fluorescence, polish etc. There is a wide range of criteria that determines the quality of a diamond.
  • Shape: Some diamond shapes are more popular than others. Round diamonds are universally considered the most popular shape, followed by princess cut. In recent years there has been an increase in demand for oval and emerald shape diamonds.
  • Certification: Does you diamond have a diamond certificate? Certificates from reputable diamond grading laboratories, such as the GIA, can add value to your stone.
  • Fancy Colored Diamonds: Some fancy colored diamonds, such as red or blue diamonds, are extremely rare. We buy a wide range of natural, GIA certified fancy colored diamonds.
  • Who You Sell To: Diamond pricing is a skilled and complex process and best left to expert gemologists.

It is important to remember however that very few diamonds appreciate in value.

Why sell to WP Diamonds

WP Diamonds is a leading diamond buyer in Japan and across the world. Established in 2012 as the modern day alternative to pawnbrokers and auction sites, we believe that selling diamonds should be as enjoyable an experience as buying them. We set out to create a seamless and professional selling service with transparent and honest prices. We pride ourselves on our outstanding reviews and customer service. Sell diamonds, diamond rings and diamond jewelry online or in person: with offices in Tokyo, Hong Kong, the UK and the US, we work with hundreds of customers a day around the world.

So how do we compare to other diamond buyers?

WP Diamonds Fast, strong prices, diamond experts, no fees or commissions deducted. We buy your diamonds directly, meaning there is no middle man or lengthy wait. We offer the option of selling online or in person, however in person appointments are only available in Tokyo, Hong Kong, NYC and the UK.
Auctions Good fit for very rare diamonds. No guarantee that your diamond will sell or how long it will take as auctions are held infrequently. The auction house will also take a percentage of your earnings.
Consignment You can achieve a small premium. Much like selling at auction, selling via consignment does not guarantee a sale and can take months or even years. Your diamond will be exposed to a limited market. And the jeweler will take a percentage of any sale.
Private Buyer Private sales can achieve small premiums. Locating an individual looking for your exact diamond or diamond jewelry at your price can be much like finding a needle in a haystack.
Local Retailer A convenient local option. Jewelers will only buy diamond jewelry that has an appeal to their local market, meaning that your item may not necessarily be of interest. Once again, there will be a fee for selling via a local retailer.

Contact Our Experts Diamond Buyers in Japan

Located in central Tokyo, our GIA trained gemologists are on hand Monday-Friday to provide price quotes and final cash offers for your diamonds. We are always happy to answer any questions you may have about the selling process, so do not hesitate to get in touch!

CALL 03-6689-3653

We have offices centrally located in Tokyo, Hong Kong, New York and the UK

What we buy

We buy a wide range of diamonds including:

  • loose diamonds
  • GIA certified fancy colored diamonds
  • diamond rings
  • engagement rings
  • diamond jewelry
  • cut and polished diamonds of 0.25ct and larger

We do not buy rough diamonds, black diamonds, brown diamonds, cubic zirconia or lab grown diamonds.