3. Sapphires

3. Sapphires

World’s Most Expensive Gem Stones

If you can afford the best of the best, then a sapphire is a great gemstone in its own right. Although there are other stones that carry more value, sapphires are still in high demand thanks to their beautiful color. For example, one of the most expensive sapphires to sell is the Jewel of Kashmire Sapphire, which attracted a buyer for $6.7 million. Weighing 27.7-carats this stone sold for nearly $250,000 per carat.