To get this look, I painted all nails with a base of Sephora's Leotard Optional, an opaque mocha beige lacquer. On my pinkies and pointer fingers, I coated each nail with two layers of Love & Beauty's black nail polish.
For the lacy triangle accents on the other fingers, I used a bit of clear tape, taking care to remove most of the stickiness first (as shown in the video), and taping off a triangle at the tip of my first nail. Using the black nail polish, my stamping tools, and Bundle Monster plate #BM-214, I stamped a few layers of design onto the uncovered part of the nail. When removing the tape, what was left is a lacy-like triangle.
And once again, the finished product!