From: Dictionary of American Naval Fighting Ships, Vol. III p 24
Garnet
A brittle, often crystalline, glasslike mineral found In a variety of colors. The most precious variety, used as a gem, is of a deep red.
Garnet (PYc--15), formerly steel diesel yacht Caritas, was built in 1925 by Krupp Iron Works, Kiel, Germany ; purchased 1 December 1941 from Mr. J. Perch Bartram of New York ; converted to a coastal patrol yacht by Robert Jacobs Co., Inc., New York ; commissioned 4 July 1942, Comdr. Donald D. Murray in command.
Garnet departed New York 21 July 1942 for brief operations in Chesapeake Bay. After shakedown off Key West and Miami, she steamed via the Bahamas and the Panama Canal to San Diego, arriving 22 September. After coastal patrol off southern California, she departed San Diego. 2 December for the Hawaiian Islands, arriving Pearl Harbor 15 December.
Except for an escort mission to Funafuti, Ellice Islands, in November 1943, Garnet spent the remainder of World War II on convoy escort and patrol duty between Pearl Harbor and Midway.
She returned to San Pedro, Calif., 15 November and decommissioned there 29 December 1945. She was delivered to the Maritime Commission for disposal 20 February 1947 and was sold 10 June to Mr. I. W. Lambert, Baltimore, Md.