Gemstone restoration is the process of repairing and rejuvenating gemstones that have been damaged or dulled over time. This can involve cleaning, polishing, and re-cutting the stones to restore their original brilliance and clarity. Techniques may vary depending on the type of gemstone and the extent of the damage. Restoration can also include treatments such as heat treatment or oil infusion to enhance color and clarity. Professionals in this field often use specialized tools and techniques to ensure that the gemstone retains its value and beauty while preserving its natural characteristics.