Determining the absolute rarest stone on Earth is a complex task, as rarity can be influenced by various factors like discovery, accessibility, and geological formation. However, some gemstones are considered extremely rare due to their limited occurrences and unique properties. Here are a few examples:
Red Beryl
Also known as bixbite, this gemstone is a variety of beryl that displays a vibrant red color due to the presence of manganese. It is incredibly rare, found primarily in the Wah Wah Mountains of Utah, USA.
Benitoite
This gemstone exhibits vivid blue fluorescence under ultraviolet light. It was first discovered in California, USA, and remains a rare find, with limited deposits in other locations like Myanmar and Japan.
Grandidierite
This gemstone displays a unique bluish-green to greenish-blue color. It was discovered in Madagascar and is considered one of the rarest gemstones in the world due to its limited deposits and specific geological conditions required for its formation.
Demantoid Garnet
This gemstone boasts a brilliant green color, often compared to emeralds. It is a rare variety of garnet, found primarily in Russia and a few other countries, making it highly sought after by collectors.
Red Diamond
While diamonds are known for their brilliance, red diamonds are exceptionally rare. Their color originates from a specific atomic structure and is often associated with intense red hues.
These are just a few examples of the rarest stones on Earth. Many other gemstones, like Painite, Musgravite, and Taaffeite, are also considered extremely rare due to their limited occurrences and unique properties.
