For a mani that shines bright like a diamond, start with a base of Icing is the Best Part and let dry.
Apply one coat of Midnight Disco and let dry to create the velvet effect. Paint a light coat of Diamonds are a Mani's Best Friend over the top half your nail and let dry.
Add a little more to the top 1/4 of the nail to create a diamond gradient effect. Finish with Super Glossy Top Coat to add shine and protection.