Pearls don’t only provide you with luxury, they need a little luxury themselves. Fine quality pearls live longest when strung on a silk cord. The silk is gentle enough not to wear on the pearl, while each bead is knotted in place, ensuring the pearls aren’t unnecessarily rubbing each other. Over time, the silk cord can wear down itself, so depending on how often you wear your pearls, they will have to be re-strung from time to time.