2 flat pliers and a cutting plier
 the chain of your choice
 3mm and/or 4mm rings (depending on the size of the links)
 a clasp type lobster or spring ring
 of the extension chain or a clasp attachment

The collar necklace size between 30 and 33cm
This is the smallest size. The necklace is thus closest to the neck. In this case, it must be adjusted to the right size to avoid choking and an extension chain should be added.

The choker size between 35 and 41cm
Ultra trendy, this size sits perfectly above the collarbones. Ideal with rosary-type chains or more intricate ones. An extension chain will allow you to adjust the length to your neckline.

The princess necklace size between 42 and 46cm
This is the most common size for a necklace with a small pendant. Your necklace will sit just below the collarbones. You can embellish the necklace with a small stone for a delicate and refined touch.

Themorning necklace size between 50 and 60cm
Here the necklace will sit above the chest for its short version and on the chest for the 60cm size. It is a perfect size to highlight a more assertive pendant.

The Opera Necklace - Sautoir size between 70 and 90cm
This size is ideal for highlighting a larger pendant. Depending on the style of the jewelry, the sautoir can give a bold look to a chic and sophisticated outfit, or a relaxed look with a summer dress with bohemian vibes...

For creating a layering of necklaces: 
When you want to create a layering of necklaces, it is often difficult to know which lengths to choose for each necklace.

Here are the most common sizes for a harmonious result.

- between 38cm and 40cm for the shortest necklace.
- 50cm for the intermediate version.
- 75cm for the longest size.

With these sizes, you will achieve a good proportion between necklaces that will allow you to embellish them with beads, pendants, natural stones...