Why is Alexandrite so Special ?

One of the rarest and most valuable gemstones in the world is alexandrite. Its unique ability to change hue makes it a more expensive gem than diamonds and other colored stones. Alexandrite has a remarkable color-changing quality; during the day, it appears emerald green, and at night, it turns ruby. It thereby creates a beautiful piece of jewelry. Because it is a potent healer, shields the body from harmful energy, and affects many facets of life, it is a well-liked gemstone in astrology. Its exquisite combination of beauty and advantages sets it apart from other jewels. The chemical formula for this uncommon chrysoberyl mineral is Al2BeO4. Alexander Stone's unique quality is its ability to shift from greenish blue in the daylight to purple-red in incandescent light. This phenomenon, known as the "alexandrite effect," is unique to this particular stone.