This medium length bar stud comes in any colour. It is made with titanium which is a fun metal and can be anodized in an array of colours. Jazz up any outfit or look with these fun studs. metal: Titanium stones: Lab created moissanite colour: blue milgrain edging Titanium is an eco-friendly material that is very abundant and highly recyclable. It is bio-compatible to human bones and tissues. Its long life coupled with the fact that it doesn't corrode, prevents it from leaching ions into the ground and makes it by far the best metal for the earth. These moissanites are lab-grown, which means it is conflict-free! They require zero mining to produce, so their origins are easily traceable. It doesn’t take from the Earth’s natural elements, so there is a significant difference in carbon footprint compared to Diamonds. If a more ethical and sustainable purchase is important to you, Moissanite is the way to go.