That depends on the look you’re going for, and the build of the person who will be wearing the necklace.
16-inch Choker length pearl necklaces should come to rest directly over the collar bones and the hollow of the throat. The choker length is good for average to petite-sized women, and those who want to add a classic, vintage feel to their wardrobes.
18-inch Princess length pearl necklaces will come to rest about 1.5-inches below the hollow of the throat, or at the upper portion of the chest. The princess length necklace is the modern favorite, and is considered the most versatile of the two necklace lengths, as it can be worn with a greater variety of necklines.
For more information on necklace lengths, visit our Pearl Education section.