Following the 1885 third anglo-burmese war in which the british conquered and annexed the hitherto independent upper burma, in 1886 the british launched a military expedition to "open up" the ruby mines at mogok and make them available to british merchants. George skelton streeter, a gem expert and son of edmund streeter of the streeters & co ltd jewllery company in london, accompanied the expedition and stayed there to work as a government valuer in the british-run mines. In 2018, the mogok commemorated the 800th anniversary of the city's founding. This item is made of ruby.