Sri Lanka has unveiled one of the biggest gem discoveries in the world: the 'Star of Pure Land.' This natural purple star sapphire weighs 3,536 carats. It is now recognized as one of the largest and rarest gemstones known today. The gemstone was introduced at a press conference held in Colombo by its owners. The Gemological Institute of America (GIA) has certified the gem, confirming its unique origin in Sri Lanka, also called Ceylon. The gem is famous for its stunning round cut, large size, deep purple color, and excellent clarity. It has a striking six-ray star pattern called asterism that makes it special. This gemstone is valued at $300 million, according to the Associated Press. Independent tests by the Lanka Gemological Laboratory also confirmed its Sri Lankan origin. Scientists say the star effect appears because of needle-like rutile crystals inside the sapphire that align perfectly. Experts say no other natural purple star sapphire matches its color, size, clarity, and star pattern. This gem formed naturally over millions of years under high pressure and temperature. It cannot be artificially made. The Star of Pure Land is important not just as a beautiful gem but also for science. It helps scientists learn how such rare gems form deep inside the Earth. Gemologists and geologists hope to use this knowledge to better understand other gemstones. Sri Lanka has a long history of famous sapphires called "Ceylon sapphires." This discovery preserves both the cultural heritage and scientific value of gemstones in the country. Currently, the gem is kept by the Tucson Masterpiece Gem Society in the USA. The Star of Pure Land Project manages its research, documentation, and public information. This project ensures the gem's history and scientific data are preserved for future generations. The unveiling event in Colombo drew local and international media, scientists, and cultural representatives. Detailed records of the gem are maintained to support ongoing research and to secure its place in gemological history.