We use naturally mined Citrine in our jewelry and so there may be natural variations in the color of the stones. When making a piece of jewelry, our stone selectors aim to match the Citrines in each piece of jewelry. If you select a set of Greenwich 4 Citrine & Diamond Earrings, they will choose 8 stones that match each other. However, because they are naturally mined stones, they may be slightly lighter or darker than the images on the website.