When designing a bathroom, the choice of materials can elevate the space from purely functional to a personal sanctuary. Among the top contenders for countertops, vanities, and sinks, natural stone stands out for its unique beauty, durability, and timeless appeal. However, not all stones are created equal, especially in a humid and high-use environment like a bathroom. If you're feeling overwhelmed by the options, you're in the right place. This guide will break down the key differences between the most popular natural stones, teach you how to spot quality and authenticity, and show you how to care for your investment so it lasts a lifetime.