Do you know how to use jewelry clasp?

Usually, jewelry clasps are twisted and designed to provide you something extraordinary and unique, they are metal component that opens and closes, allowing the jewelry to be put on and taken off with ease. You can find them in variety styles, sizes and materials; including box clasps, toggle clasps, lobster clasps, magnetic clasps, etc.
Some jewelry clasps are there for function only, which used to connect two ends of a necklace or other piece of jewelry. However, they can also decorative ones which add to the overall beauty of a piece of jewelry. From the functional ones to the fancy decorative ones, each clasp creating the appearance of different designs and styles, allowing you to further customize your jewelry piece.

That's to say, as an integral part of every design, you can select clasp according to your style needs. Whether it is a classic, stylish, unique or even colorful designer one, you'll easily find it online. Besides, online dedicated jewelry sites conveniently provide a wide selection of jewelry clasps with discounts and offers.
But choosing only the best types of clasps which offer both great functionality and a stunning visual design is not that easy. In order to make sure you find the perfect clasp, familiarize yourself with different clasps is necessary.

A friend told me what is clasp（pearl clasp in detail)

A clasp originated as a finding for strands of pearls, although now they may connect a single strand or multiple strands of pearls, beads, or jewelry chain.
A pearl clasp has at least two parts - a body or "box", plus an insert that locks into the body, sometimes called a "bracelet tongue".  The body may be simple - a polished rectangle with at least one jump ring on the end opposite the bracelet tongue - or it may be very fancy with filigree patterns or corrugation.  The clasp's insert may be a hook that needs to fit around a pin before locking into the body or it may be a folded insert pushed directly into the clasp.  The number of jump rings on the bracelet tongue should match the number of jump rings on the body.
Some pearl clasps also have additional safety provided by a figure eight and a pin.  The figure eight, which looks more like a pop bottle, attached to one side of the clasp will click over a pin fastened to the second side of the clasp.