RG Crystals utilizes the advanced Czochralski method to create lab grown alexandrite, a gemstone well known for its color-changing properties and dynamic color play. Our lab-grown alexandrite replicates the natural gem's chemical composition, crystal structure, and remarkable color-change behavior, offering a sustainable and customizable alternative to mined stones. Czochralski method is a high-precision crystal growth technique. It involves melting a carefully designed chemical mix at high temperatures in a crucible and drawing a seed crystal slowly upward, allowing the gemstone to form layer by layer. This method ensures the exact blend of chromium and other trace elements that give alexandrite its iconic color-shifting effect.