Necklace Size Chart

Use this chart to compare common necklace lengths in inches and centimeters. Placement is approximate because body proportions, neck circumference, pendant weight, and chain style all affect where a necklace sits.

Length Centimeters Common Name Typical Placement
14 in 35.6 cm Collar High at the base of the neck
16 in 40.6 cm Short / Choker At or just above the collarbone
18 in 45.7 cm Princess Around the collarbone
20 in 50.8 cm Mid-Length Just below the collarbone
22 in 55.9 cm Longer Mid-Length Upper chest
24 in 61.0 cm Matinee Lower upper chest
30 in 76.2 cm Long Mid-chest
36 in 91.4 cm Opera Lower chest / long drape

Quick reference

  • 16 in: short, close to the collarbone.
  • 18 in: classic everyday pendant length.
  • 20 in: slightly lower and useful for layering.
  • 22–24 in: longer drop and more space for larger pendants.

Placement is approximate. For the most accurate comparison, measure a necklace you already like or use a soft measuring tape around the neckline.

For styling ideas, see the Layering Guide.

Diamond ring on water with a dark blue background

Lunéa Paris

Who We Are

Lunéa Paris was created with one goal: make modern luxury feel personal. Pieces that look unforgettable, feel comfortable, and carry meaning—whether it’s a gift, a milestone, or a promise.

We choose lab-grown diamonds for their brilliance and our belief in a better way forward. Each design is crafted with intention and finished with precision—so your jewelry feels just as special years from now.

  • Brilliance you can feel
  • Made with love
  • Design-first craftsmanship
  • Responsible by choice
  • Made for everyday elegance