Diamond Import and Wholesale


Eiwa Boueki began as "Nakagawa Shouten," which was founded at around the inception of the Meiji Era. Based in Yokohama, which had prospered as a port of trade since the Edo Period, Nakagawa Shouten operated as a pawn shop, providing cash loans against collateral, accepting anything from rare imported goods to everyday items. Eventually, with the wave of Westernization in the Meiji Era, all things Western, as well as jewelry and precious metals that had not been seen until then, began to appear around the town.

For pawnshops, survival depended on their ability to identify the value of objects. In the course of their business, they naturally cultivated an eye for accurately judging the value of jewelry.

In this way, Nakagawa Shouten provided a safe and secure financial system for the common people of the town, and the family business grew steadily. However, an event that literally shook the nation struck, namely, the Great Kanto Earthquake of 1923. Later, Japan plunged into even darker times as the nation entered into war. Although Nakagawa Shouten suffered tremendous damage during both events, fortunately, it managed to survive and entered a period of reconstruction after the war.

The business passed into the hands of third-generation owner, Hideki Nakagawa. When the company’s warehouse, which also acted as the deposit box for the pawnshop, was burnt down first in the earthquake and then again in the air raids during the war, the only things to survive unburned were precious metals and jewelry. Based on this experience, anticipating the aftermath of Japan’s period of rapid economic growth, Nakagawa established Eiwa Boueki in 1977. Armed with an eye for appraising gemstones that it had cultivated in the family pawn business, customer service skills nurtured through many years of dealing with customers, and a spirit of enterprise, the company moved into the diamond market. As the country rode a path towards economic superpower status, at one stage, Japan was on its way to holding the second-largest number of diamonds in the world.

Of the 4Cs used to appraise the value of diamonds, Eiwa Boueki focused on the “cutting,” which was the only criterion that depends on human craftsmanship. Hideki himself traveled to Israel, where, with his trademark negotiating skills, he concluded one new contract after another. Eiwa Boueki would eventually come to possess state-of-the-art diamond-cutting equipment and cutting know-how.

Ever since, the company has consistently done business with the motto of “cutting quality diamonds with the intricate skills of the Japanese craftsman.” For the steady production of diamonds of the highest quality, Eiwa has expanded its operations to Thailand, where it has its own workshop. Today, the fourth generation of the Nakagawa family, Yu Nakagawa, has taken over the reins of the business. While carrying on the traditions of Nakagawa Shouten, he is busy building up Eiwa Boueki for future generations.