Both OPI and Essie make nail polishes available in a Tiffany blue color. The OPI polish is called Tiffany Case and is a light blue shade with silver glitter.
Essie makes several light blue nail polishes that can be considered Tiffany blue. They include Rock the Blue, which is a shimmering light blue shade that Essie refers to as French blue. Bikini So Teeny is another light blue shade from Essie that is described as cornflower blue with a shimmery finish. China Glaze also makes a Tiffany blue nail polish color called Kinetic Candy, which is a soft blue hue with a silver shimmer.