Yes, generally, Emeralds are considered rarer than diamonds—especially high-quality emeralds with rich color and minimal inclusions. Emeralds form under very specific conditions involving rare elements like chromium and vanadium, making them harder to find. While diamonds are more commonly produced and available in larger quantities, some types—like fancy-colored diamonds—can also be extremely rare and valuable. However, when comparing standard colorless diamonds to vivid, clear emeralds, emeralds are usually the rarer and sometimes more valuable gemstone, depending on quality and size.