Beautiful and Rare Bangle Bracelet, interior measurement t is 62mm=2.44094. Genuine Natural untreated deep emerald green color with “fine texture” was named the “Circle of Heaven” not only for its circular form, representing the idea of unity, but also because jadeite is thought to be the “stone of heaven” in ancient Chinese belief. This exotic gem was mined in Burma and all mines have been exhausted making them highly collectible and difficult to find! This Maw-sit-sit material is from the rough produced during the 1970's. The mine is depleted and there has not been any production of Maw-sit-sit in Burma/Myanmar or elsewhere in the world since. Maw-Sit-Sit is a local name for Jade Albite from upper Burma.