Diamonds are perhaps the most famous among all gems. They are highly valued for their hardness, brilliance and color. Diamonds are commonly colorless. But they can be found in colors such as yellow, red, pink, blue and more. The most famous diamonds in the world include the Hope Diamond, the Koh-i-Noor, and the Cullinan Diamond. Rubies are found in Myanmar, and other parts of the world such as Sri Lanka, Tanzania and Thailand. Sapphires are another highly prized gemstone. Their common color is blue. Also, they found in other colors such as pink, yellow, green, etc. Sapphires are often used in engagement rings and other types of jewelry, and are highly valued for their beauty and durability. Emeralds are highly prized for their vivid green color. They are found in Colombia. But they can be found in other locations such as Brazil and Zambia. Like other gemstones, emeralds are valued for their rarity, as well as their beauty and durability. Pearls are a unique type of gemstone that are formed inside the shells of certain mollusks, such as oysters. They are highly prized for their luster and are often used in jewelry. The most valuable pearls are typically those that are perfectly round and have a high degree of luster. Other famous gemstones include opals, which are valued for their unique play of color; amethysts, which are valued for their purple color; and topaz, which can be found in a range of colors, including blue, pink, and yellow.
