Lab Synthesized Pulled Corundum (By Czochralski Process).  Royal Blue Sapphire- the color is tops! 

This process utilizes a sapphire seed crystal and is considered one of the top methods of creating quality corundum synthetics.  

Please watch the video to see a cut gemstone from this material. The video shows all the colors we sell. The Royal Blue Sapphire is the second stone in the video 

15.505 carats / 12.0 x 9.3 x 8.5 mm