While there is a "formula", so to speak, know that rules are made to be broken. Whether you choose to layer three or more pieces, creating an effortless layered look doesn't have to be something difficult.
In my opinion contrast, texture and proportion are the most important aspects to crafting a great layered look. For example, pairing a statement choker with thinner chains of different lengths.
For this look we've paired our Zephyr Choker, Adaline Necklace and Polaris Long Layer together. We love how the Zephyr Choker acts as anchor to the look, while the Adaline adds some weight and contrast with the rounded snake chain. The thin chain and length of the Polaris balances out the look with an added bonus as the crystal picks up whatever colour you're wearing.