Manually synthesized popular Synthetic blue yellow corundum

using verneuil\'s method. we started to develop the production of synthetic gemstones since 1966, enjoying a long history of gemstone production.

We have a strong team of engineering and technical personnel and independent research and development capabilities. 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.