Zaozhuang Ruizhong Gem Crystal Material Co., Ltd. is located at Zhongtai Chemical Industry Park, Zaozhuang, China. We were invested by Yantai Huajing Gem Co., Ltd. in March, 2011. Yantai Huajing Gem Co., Ltd. was built in 1976. The old name is Yantai Gem Factory. We are the oldest manufacturer of synthetic gemstones in China now. Our major products include rough ruby No. 1, 2, 3, 5 and 8, alexandrite, blue corundum, white sapphire in half boules, white sapphire crackle and annealed whole sapphire boules. We have more than 100 employees including three advanced technicians. With the strong technical power and independent R&D capability, we have employed crystal experts from famous domestic colleges, universities, and research institutions as our permanent technical consultants. Since 2003, we have researched 5N white sapphire crackle with special purity, which is the material of KY, EFG and CZ crystals. The purity is more than 99.999 percent. Our annual production capacity is about 300 tons. 60 percent of them are exported to India, South Korea, Pakistan, Japan, the USA, France and Egypt.We rank among the first in the domestic industry according to main economic and technical indicators including production scale, product variety, product quality and foreign exchange. Moreover, we have received awards such as "Outstanding Products" from Ministry of Light Industry and "Shandong Outstanding Enterprise".If you are interested in our products, contact us today.