Aurora Australis is an iridescent glitter top coat, meant for layering over other polishes. It shifts from orange through gold and green. The Aurora top coats are named for planetary auroras, and Aurora Australis is named after the Southern Lights. Pictures of the Southern Lights frequently show beautiful shades of red, orange, yellow, 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.