The "Five of Diamonds" is part of the Southern Pleidaes
http://www.nsknet.or.jp/~ice2/06-preades-hp.jpg
"The Southern Pleiades (also known as the Theta Carinae Cluster, Open Cluster IC 2602, or IC 2602) is an open cluster in the Carina constellation. It was discovered by Nicolas Louis de Lacaille in 1751 from South Africa. The cluster is at a distance of about 479 light years away from Earth and can be seen with the naked eye."