Caviar lime, often called finger lime, is a rare citrus caviar that’s catching the eye of chefs everywhere. Its tiny, pearl-like beads and colors — from purplish-black to bright green or burgundy — make it a fascinating and flavorful addition to dishes. Finger lime fruit is no ordinary finger lime — it’s a rare, finger-shaped fruit filled with citrus pearls that pop with flavor. It has 2 varieties, one red finger limes and bright green finger lime caviar, and it’s quickly becoming a favorite among chefs looking for something a little different.