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.
Observe the color of the stone you are considering. 1  Peridot is pale to grass green. 2  The gem is classified as ideochromatic, which means the color is caused by ferrous iron. 3  The most valuable stones are grass green, but peridot can also be yellowish or even have a brown tint.