Lab-created gemstones are man-made stones that mimic the appearance and chemical properties of natural gemstones. They are produced in controlled environments using advanced technology, which allows for the creation of high-quality gems that are often more affordable than their natural counterparts. Common types include lab-created diamonds, sapphires, and emeralds. These gemstones are environmentally friendly and ethically sourced, as they do not involve mining, which can harm ecosystems and communities. Lab-created gemstones are also graded using the same criteria as natural stones, ensuring that they meet industry standards for quality and durability.