This is an easy one. Laura Mercier released the Caviar Sticks two years ago in seven basic colors and I've been a fan since then. I've already had to repurchase Sapphire and Amethyst, and also added several of the newer shades to my collection, just not any of the lighter ones. Silly me. Grey Pearl and Sand Glow might not have the wow factor, but they're complex, pretty, and wonderfully versatile. You can see the comparison swatch that shows Grey Pearl next to Amethyst: it's even more lower lashline-friendly (I usually avoid dark colors under my eyes).
Grey Pearl is a lighter (and grayer) version of Amethyst, while Sand Glow is somewhere between brass and dirty antique gold. Both are excellent neutrals that work alone or combined with other Caviar Sticks. The texture of Laura Mercier's Caviar Sticks has made them favorites of many. They're perfect for travel and use on the go. They're easy to apply: swipe, smudge, and forget about it until cleansing time. Once the color is set there's no migrating or melting (I do use a primer) even in the summer heat.
Laura Mercier Grey Pearl & Sand Glow Caviar Sticks ($26 each) are available at the counters and from lauramercier.com.