The 4A grade pearls used in our high-end products offer exceptional quality. Here are a few differences between them: Rarity: 4A grade pearls are extremely rare and hard to find. Their scarcity increases their market value significantly, resulting in a higher price point. Luster and Shine: 4A grade pearls possess an unparalleled luster and shine. These exceptional visual characteristics are achieved through meticulous cultivation and selection processes. The extra effort and expertise required make them more expensive Perfect Shape and Surface: 4A grade pearls showcase near-perfect roundness and exhibit minimal surface imperfections. This uniformity and flawlessness add to their overall appeal, elevating their value.