The pin measures about 9/16'' wide. It appears to be in excellent used condition as pictured. Below here, for reference, is some additional information about this Gold Star lapel pin:
Gold Star Lapel Pin
From Wikipedia, the free encyclopedia
A Gold Star Lapel Pin in the United States is an official decoration authorized by an Act of Congress that is issued to the direct next of kin family members of service members whom lost their lives in World War I & World War II and subsequent armed hostilities in which the Armed Forces of the United States has been engaged.
History
The Gold Star Lapel Button was established by Act of Congress, Public Law 80 - 306, in August 1947 for the public identification of the direct next of kin of military members of the Armed Forces of the United States who lost their lives of WWI & WWII and subsequent armed hostilities of the United States.
Award criteria
The issuance of the Gold Star Lapel Button for the next of kin consists the following time periods: (1) World War I, April 6, 1917, to March 3, 1921; (2) World War II, September 8, 1939, to July 25, 1947; (3) United Nations action in Korea, June 27, 1950, to July 27, 1954; (4) After June 30, 1958 (a) while engaged in an action against an enemy of the United States; (b) while engaged in military operations involving conflict with an opposing foreign force; (c) while serving with friendly foreign forces engaged in an armed conflict in which the United States is not a belligerent party against an opposing armed force.