It follows the same process as natural Blue Sapphire is created make it the most superior among other Blue Sapphire.

Natural Blue Sapphire are rare and over-valued. It is better to buy Blue Sapphire made by Pulled method as they have exact same chemical composition and physical composition and are sold at fraction of price of natural Blue Sapphire. They also appear brighter and more vivid than natural Blue Sapphire making it the better than corundum blue sapphire stones.

Which gemstones can be grown in a lab?

Diamond, fancy colored diamond, sapphire, ruby, spinel, emerald, alexandrite, moissanite, and opal. Every year, technology advances and more opportunities are available. Even in just the last five years, There’re huge advancements in the methods used to grow colored gemstones.

As you can see the pictures from this page, these colors are lab grown, and more and more colors will be created for the jewelry designs.