From Modern Mood. Solid 14k trinity of genuine gemstones is 4.5mm across. Available with your choice of moonstone or opal. This is a great look for all kinds of ear placements, such as earlobes, helix, flat or conch, or even a nose piercing or tragus. This threadless end will fit on any size of our implant grade titanium threadless labret posts, found here. The pin on this piece will be pre-bent to ensure a secure fit.