11.What size of jewelry is standard? Some piercings do have a general standard gauge size which refers to the thickness that may work well on many people. The diameter or length size of the jewelry really depends on the individual. The industry has adapted a minimum of suggested sizes of jewelry for specific Piercings. The look of the jewelry is only part of the overall Piercing process. Sometimes what you imagine what would look best doesn’t always work the best in regards to the healing procedure. The jewelry must function properly. Jewelry that is not the right size can often the entire healing process. The most important factor to consider is the comfort and promotion of an easy, care free healing process. 12.Will my Piercing jewelry set off the metal detector at the airport? With heightened security, even a metal shoe buckle has been known to set off sensitive detectors. These days you just may, if you are wearing Stainless Steel Jewelry.