**Editor's Note:** Comrade Xia Yaofeng, formerly the director of the Abrasive Research Institute at Zhengzhou Abrasives Grinding Research Institute (referred to as "Sanmao"), was a key member of the Sanmao Institute of Synthetic Diamond (121), working under the direct leadership of Yu Hongchang, Wang Guangzu, Lu Feixiong, Yu Zhengmin, and Li Jinbao. As an expert representative, he was invited to participate in the 50th Anniversary of China’s Artificial Diamond Birth and the 6th China Zhengzhou International Superhard Materials and Products Seminar, held on the morning of November 14, 2013. The event included a special flower-giving ceremony for veteran experts (see Photo 1). This article captures his heartfelt reflections on the occasion, expressing gratitude for the Party and State’s support, the spirit of unity and self-reliance, and the hard work that has brought China’s superhard materials industry to its current success. It serves as a powerful inspiration for those continuing this national mission.
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As a veteran with 57 years of experience in the abrasives industry, he has witnessed the entire journey of China’s superhard materials sector—from its humble beginnings to becoming a global leader. Being invited to the 50th-anniversary celebration of Chinese synthetic diamonds was a great honor. When he took the stage and received the bouquet of flowers dedicated to the industry’s elders, his heart was filled with emotion. Over half a century of memories flooded back—so many, so vivid, it was almost overwhelming.
**(1)**
One memory stands out: in 1963, when he successfully synthesized the first artificial diamond in China, he traveled to Beijing to report to the ministry leaders. Accompanied by officials from the Machine Tool Bureau and the Science and Technology Department, they arrived at the Ministry Office. After being told to wait for a day or two, they were finally received by Vice Minister Zhou Zijian, who was delighted to hear about the breakthrough. At the time, all he had to show was a small bag of black powder with some sparkling fragments—but it was met with great enthusiasm and encouragement. Years later, during the 1985 Beijing New Technology Achievements Exhibition, the then-Prime Minister personally visited their booth and examined the diamonds under a microscope (see Photo 2). Today, such crystals are mass-produced and easily accessible, a far cry from those early days.
**(2)**
Another unforgettable moment came in 1984, when he and Comrade Meng Qinghui led a delegation to visit the United States and Canada. During their trip to GE, they were warmly welcomed by company leaders and American pioneers in synthetic diamond research (see Photo 3). In Mr. Kabnarulus’ office, they were shown a small box containing large single crystals, with detailed explanations of their properties and synthesis challenges—but no technical secrets were shared. Back at the hotel, the group realized the importance of self-reliance and national pride, vowing to push forward without giving up.
**(3)**
Over the years, China’s synthetic diamond industry has grown significantly. Today, it not only holds a prominent place in the global market but also leads in certain areas. Output now accounts for over 90% of the world total. With independent intellectual property, China’s six-sided top press has become a symbol of technological advancement. No longer locked away in safes, our large single crystals are now produced in batches, marking a remarkable transformation.
**(4)**
The achievements of the past 50 years would not have been possible without the strong support of the Party and state leaders. Premier Zhou Enlai, for instance, gave clear instructions on the development of synthetic diamonds, including the goal of producing 200,000 carats per year. These goals were met, thanks to the dedication of leaders like Vice Premier Li, who repeatedly encouraged and guided the industry. From the National Synthetic Diamond Zhengzhou Conference in 1971 to the establishment of the National Diamond Leading Group, every step reflected the central leadership’s commitment.
**(5)**
What truly sets China apart is the spirit of socialist cooperation. Different units worked together seamlessly, sharing knowledge and resources. For example, I once freely shared my production technology with other institutions, training over 400 technicians across various systems. Some factories even set up temporary dorms and kitchens to accommodate trainees. This collective effort helped spread synthetic diamond production nationwide.
**(6)**
Finally, the people behind these achievements are the real heroes. From the early days of experimentation in a makeshift lab to the hardships faced by workers in harsh conditions, every step was driven by dedication and sacrifice. Comrade Li Jinbao, a graduate from Zhengzhou, exemplified this spirit. Despite living in poverty and commuting long distances, he became a master in press operations, always ready to take on difficult tasks. His story reminds us of the courage and perseverance that built this industry.
**(7)**
Looking back, we see how the younger generation continues to carry the torch. Today’s professionals are determined, innovative, and committed to advancing China’s superhard materials industry. Under the leadership of the Party Central Committee, they are striving to realize the dream of a strong nation in this field. We can be confident that China’s superhard materials will continue to rise and shine on the global stage.
**Photo 1. Celebrating the 50th Anniversary of the Birth of Chinese Synthetic Diamonds**
**Photo 2. Zhao Ziyang, then Premier of the State Council, watched synthetic diamonds**
**Photo 3. Members of the delegation took photos with GE leaders and the first synthetic diamond developer in the United States**
**Photo 4. Members of the delegation watched diamonds in the office of Mr. Kabnarulus**
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