TeNo Titanium double layer leaf-shaped stud earrings, with brushed titanium and black PVD coating.Ê Earrings are 12mm in length. TeNo Titanium advanced titanium jewelry is like no other. The finish is superior and the look is clean and attractive. They introduce titanium to 18kt. Yellow and Red Gold, and also mix in Silver and Platinum to their fine jewelry. The results are fascinating.