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 is a gemstone from the mineral olivine. Like citrine, peridot is one of the very few gemstones that have only one color: green, though shades of the green gemstones range from olive green, to brownish, to almost yellow â all with glassy luster.hough popularly known for their white variety, pearls are also available as black, yellow and green stones. Light green pearls are produced by Japanâs Akoya oysters, while the dark green gemstones come from the black pearl oyster, whose pearls are not necessarily black, but may also be shades of green and blue.