Clasps in Gold Filled with 14 K 1/20 Gold Bonding and Silver925 gold plated.

The better alternative to simple gold-plated 925 silver clasps:
Gold filled with much thicker and more stable, longer lasting gold surface.

Gold Filled 14K 1/20 Ham. means:

Much more stable gold layer than a simple gold plating!
This gold plating is 100 times thicker than a traditional gold plating.
5% of the total weight is the 14 carat gold layer, inside a brass core.
This gold plating is 100 times thicker than a traditional gold plating.
Gold seals with a stable gold layer on the outside: Goldfilled, a 14K gold plated on brass core.
Extremely resistant to abrasion, many times more stable than a simple gilding.
Hamilton is an additional gilding, which ensures only the best color. (as with 18karatigem gold jewelry),
so the closures are quasi 1x gold coated and then gilded.
The material Goldfilled gold closures gives you the security for your gold jewelry.