Weighing more than 563 carats, the Star of India is what type of gemstone?
Ruby
Emerald
Diamond
Sapphire
Fact: The Star of India is one of the largest and most famous gem-quality star sapphires ever found. At 563.35 carats, it is roughly the size of a golf ball. Despite its name, the stone was found in Sri Lanka roughly 300 years ago. Its defining feature is a striking star-shaped pattern known as asterism, caused by tiny mineral inclusions within sapphire. The stone was donated to the American Museum of Natural History in New York by financier J.P. Morgan in 1900. The sapphire itself is estimated to be about 2 billion years old.
Correct Answer: Sapphire