What Happens After Pearls Are Harvested? A Guide to Processing and Sorting

Pearls do not become jewelry immediately after harvest; they must first be cleaned, dried, sorted, and processed. Initial cleaning removes organic matter and impurities from the surface, after which each pearl is graded by size, shape, color, luster, and blemishes. Some pearls undergo common whitening or color-adjustment treatments, which reputable sellers should disclose accurately. To make a necklace, artisans also drill holes, coordinate colors, and match the pearls one by one so that size gradations, tones, and luster form a harmonious whole. Drill placement must balance appearance with the need to avoid damaging the nacre. Quality processing does not make every pearl identical; it preserves their natural characteristics while creating overall order and beauty.