Pulled method emerged after the 18th century. Nutrients are set to melt in a crucible. Lab created crystals begin to grow on seed equipment dipped in the solution. When the crystal forming process hit at the endpoint, the seed crystal is slowly pulled from the solution as it continues to grow. The process continues until pulled blue sapphire is at long last manufactured. The lab creat... https://www.gemsngems.com/product-category/lab-created/hydrothermal-pulled-czochralski-gemstones/hydrothermal-emerald/