Diamond babe!

 Gem: Pastel Rainbow Diamond Nipple Pasties by Pastease® are hand-made in the USA of soft sparkling velvet material  that forms to curves and resists wrinkling over hardening nipples.  

Just peel-and-stick on clean, dry skin. All Pastease® feature latex-free, medical-grade, waterproof adhesive that stay securely in place for as long as you like and until they are gently removed.

Disposable Nipple pasties, however Pastease sells refill stickers for the backs.