Aurora Borealis is an iridescent glitter top coat, meant for layering over other polishes.  It shifts from cool green through turquoise and blue.  The Aurora top coats are named for planetary auroras, and Aurora Borealis is named after the Northern Lights.  Pictures of the Northern Lights frequently show shades ranging from bright green through violet, but the few times I’ve glimpsed it myself, it’s been shades of blue and green.

Rather than offering sets, purchasing three or more bottles of polish from the Aurora collection in a single order will give a discount of 3.5% on all Aurora collection polishes in the order, which will be reflected in the cart under the line "Aurora collection discount."

The last photo shows what Starlight Polish 15mL and 7.5mL bottles look like.