Lab Synthesized Pulled Corundum (By Czochralski Process).  Canary Yellow Sapphire - Zippy color! 

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 Canary Yellow Sapphire is the third stone in the video 

14.530 carats / 12.1 x 9.1 x 7.0 mm