The Prong-set with Cubic Zirconia piece is a very popular choice as the setting allows for a good level of support to the gem while still letting light reach it from all angles giving it a bright sparkle.
 
It features gems in three possible sizes: 2mm, 2.5mm, and 3mm and is available in 14 karat Yellow Gold, and can also be ordered in White Gold and Rose Gold options. It can be used in any piercing that is fit with a threadless titanium post.