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.
Peridot gemstones smaller than three carats are very common but gemstones over five carats are rare and therefore have a higher value. Peridot in 10 to 15 carats are even more rare, but provide a big and bold look for an affordable price.