A gemstone, also known as a precious or semi-precious stone, is a mineral or rock that is valued for its beauty, rarity, and durability. Gemstones are typically cut and polished to create jewelry or other decorative items. Gemstones come in a wide variety of colors, shapes, and sizes, and they are often prized for their unique properties and meanings. Some of the most well-known gemstones include diamonds, rubies, sapphires, emeralds, and pearls, but there are many other types of gemstones as well. Gemstones are often categorized based on their mineral composition and their physical properties, such as their hardness, clarity, and color. Different gemstones can have different meanings and symbolism, and they are often used in jewelry and other decorative items as a way to express personal style and taste.