Pioneer of Diamonds in JAPAN

Pure Diamond Co., Ltd. is a wholesale company that specializes in lab-grown diamonds, based on deep knowledge of the natural diamond business.

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As a diamond professional, we handle lab-grown diamonds with confidence, based on our predecessor concern's experience and knowledge of the natural diamond business spanning more than half a century, and cutting-edge knowledge gained through partnerships with diamond technology companies and international diamond research institutes.

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Pure Diamond Co., Ltd. was established in 2016, when the term of "lab-grown diamonds" did not yet exist in Japan market, and there were no companies or brands that deal with it.

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Lab-grown diamonds are genuine diamonds that are physically and chemically identical to natural diamonds, and are socially clean and “pure” diamonds that are not involved in conflicts or slave labor. In addition, it is a great attraction that materials equivalent to natural diamonds can be obtained at a much lower price. For example, we can offer 1ct size diamonds, which many people dream of, at an affordable price, and expand the appeal of diamond jewelry.

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​We provide new business opportunities to many companies by enlightening the correct knowledge and appeal of lab-grown diamonds and building a proper market for lab-grown diamonds in Japan. And we believe that it is our mission to let the final consumers know the advantage.