Necklaces The Sis Kiss Necklaces The Sis Kiss Necklaces The Sis Kiss Necklaces The Sis Kiss Necklaces The Sis Kiss. Carolina Bucci k. i. s. s. necklace in gold. For this K. I. S. S. necklace, a single sinuous coil of 18k Yellow Gold is worked to create a remarkably fluid silhouette that echoes the balance springs in the watches that Carolina Bucci has designed for Audemars Piguet. This piece is approximately 60cm long. It is meant to be worn casually, even at formal occasions, and styled with a free spirit it can also be worn as a triple wrap bracelet. Keep It Super Simple. K. I. S. S.