Lab created stones, also known as cultured stones, are created in a laboratory setting using advanced technologies that mimic the natural processes that occur in the earth’s crust. These stones have the same chemical and physical properties as their natural counterparts but are usually more affordable and environmentally friendly to produce. They are popular in jewelry making and are commonly used as alternatives to natural gemstones. Despite their origin, lab created stones can still be of high quality and are a great option for those who want the look and feel of natural stones without breaking the bank. Gorgeous Cushion Faceted Lab Created (Corundum) Blue Sapphire These sapphires have the same chemical compound as natural, mined from the earth, sapphires! Chemical composition : Al2O3 Crystal Structure : Hexagonal Purity : 99.99% Refractive Index : 1.717 Density : 3.98-4.1 g/cm3 Hardness Mohs : 9 Manufacturing Method : Verneuil, (Also called Flame Fusion)