One of the most important considerations when making jewelry necklaces with magnetic clasps is to make sure the clasp is strong enough to hold the weight of the necklace. Match larger, stronger clasps with heavy beads, especially glass and stone beads, and smaller, lighter weight clasps with lightweight beads such as those made of clay, wood or plastic. The magnetic clasp must be strong enough to stay closed while holding the full weight of the beads.
Clasp Material
Pewter magnetic clasps are the most common, but they don't always go well with the materials you are using in your necklace. To keep the value and beauty of your necklace, use a magnetic clasp in the same material you are using elsewhere in your necklace. For example, if you are using sterling silver cap beads in your necklace, use a sterling silver magnetic clasp. Although harder to find, magnetic clasps now come in very decorative styles, including ones that are set with gemstones and gold.
Surrounding Materials
When using magnetic clasps, consider the other materials you are using in your necklace. Some may not be compatible or make it difficult to close the clasp. For example, the stone hematite has magnetic properties and could be attracted to the magnetic clasps. Certain metal chains and findings could also do the same. If you are using materials in the necklace that are magnetic, put enough space between them and the clasp so that portions of the necklace will not be drawn magnetically to the clasp.
