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About us

CEO ROY TRAVIN is descended from one of the most trusted families in the diamond business.

Our company is a diamond manufacturer that has been handed down from generation to generation in Israel, Belgium, New York, and Hong Kong. The Travin family is the founder of the Diamond Exchange Building, which has been at the center of the world’s diamond trade since the mid-20th century.
In an ideal environment for learning about diamonds, Mr. Travin cultivated advanced techniques for appraisal and learned the basics of the trading business dealing with various countries since he was young. Leveraging its tradition and expertise, R.T.Diamonds Co., Ltd. was established in 2010 as a diamond market professional.
Established in Tokyo.

Most of the diamonds distributed in the world are Israeli diamonds. The polishing process that pursues brilliance is world-class.

We will do our best to find the diamonds you are looking for, such as rare cuts and colors that are rarely seen in the market.

In addition, Israel has established the “Kimberley Process Approval System” to deter the distribution of conflict diamonds and our company has been a proud member of KPCS, a system in Israel that does not allow conflict diamonds to enter regardless of whether they are rough or polished, so we can deliver not only quality but also the best diamonds to everyone.
I can.

We support the entire process from loose diamonds to creating unique, one-of-a-kind jewelry.

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