Lab Grown Emerald/Hydrothermal Emerald
Hydrothermal process is one of the most popular methods for creating lab grown/created Emerald, which uses heat and pressure to imitate natural conditions deep in the earth that formed natural gems. Nutrients are dissolved in a water solution with synthetic crystals forming as the solution cools. Lab grown/created emeralds are identical to natural ones in chemical composition and similar in appearance, although color and saturation variations may be detected by the eye alone. Lab grown/created emeralds are usually less expensive than natural ones of similar color.