There's a mini-tutorial below.
Step 1: Paint 2 coats of black
Step 2: 2 Paint a matte top coat
Step 3: Carefully dab your blue glitter on to create the half-moons (I used 2 different blue glitters)
Step 4: Paint just the tips with a clear coat
Easy-peasy lemon-squeezy!
Polishes Used:
Black - Orly #40484 Liquid Vinyl
Blue Glitter #1 - China Glaze #857 Dorothy Who?
Blue Glitter #2 - Sinful Colors #1165 After Party
Matte Top Coat - Sephora
Top Coat - Seche Vite Dry Fast Top Coat