The large scope of potential global public health threats is recognized in the revised International Health Regulations (IHR [2005])3 with its all-hazards approach to assessing serious public health threats.
How much is it? On average, a high-quality peridot stone can cost anywhere from $50 to $200+ per carat. Larger peridots that are exported from foreign countries can cost as much as $500+ per carat. Generally, stones mined from Burma, Pakistan and Arizona can command the highest prices.
Premium prices can still be demanded for fine, top gem quality Pakistan Peridot. The U.S. has also become a major source for Peridot since the world's largest known deposit is on the San Carlos Apache reservation 80 miles west of Phoenix, Arizona, but this material rarely cuts gems above 10 carats.