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.
This is good for the price. I spent a long time trying to find a peridot ring at a reasonable price, and I could not find one. The gemstones are slightly see thru and a little dull. I wanted a ring that was my daughter's birth stone, so the purchase did satisfy that need.