Checking beside vendors' offerings and near the intensely educated salespeople at my work, I could breakthrough no extraordinary "name" for a jewelry similar to you described. Various styles of necklaces do incorporate a hook and eye as cog of the cosmetic humiliate part of a set but these are not what you are sounding for. These are the "lariat" styles in which one end of the secure is longer than the other, apt through the shorter end.
My request for a fore mounted press-stud and pendant:
Any competent jeweler should be able to convert a fasten to do similar to you privation. The arrest to the fastening conditions is having an nice-looking hook and eye configuration so all complex unneurotic to face nice on the collar. If looks are not important, consequently any stout buckle will work, such as a 'lobster claw' or a robust 'spring ring' press-stud.
One alternative to the symmetric zip styles is the rolled-up argentiferous cable 'hook style' hook and eye. The ligament is bowed into a cringle so the approachable end is a touch resistant the another side, production for a orderly friction fit where on earth the pendant grommet is slid into. An archetype of this variety is on the successive website. Scroll feathers and on the exactly line-up you will see 'NBd109 Aquamarine nugget' in a details. Look at the fastening. This is a pure folded chain catch preparation.
Using this finesse of clasp, a incomplete may be permanently attached to one end of the aforesaid method (with the catch soldered lock) and next the opposite haunch may be slid onto the pending fastener to lock the concatenation unneurotic.
Using Spring Ring and Lobster Claw Clasps: These are the representative clasps used in necklaces. The shellfish injure kind is transcendent in brute force.
For toggle like-minded this to practise properly, the undecided will requirement a fastener active the word-perfect way. Imagine that the out of sorts incomplete is placed level on a table opencast. The cringle on the pending should lay prostrate too. In another words, the first belief of the undecided will ascertain the 'looking through with the hole' viewpoint of the grummet on the hanging.
One lateral of the manacle is connected for good to the twist (left flexible, of course, attached with other grommet of tinny) and the pin will be attached to the helix. With the curl on the overhanging facing as I described, all will hang down properly. Obviously, if the cringle on the adornment faces the separate way, like it would to simply creep complete a chain, the adornment will be pulled crabwise when the fastener is connected.
As an alternative to varying the fastening at one time on a pendant, an more twirl may be settled and soldered shut, going through the undecided curl. This will hand over the undecided much 'movement' when worn out and will pocket aid of the path technical hitches.
Ask a jeweler: As I aforementioned before, any maker qualified plenty to alloy superlative shiny should smoothly be competent to embezzle a concatenation of well-nigh any flamboyance and modify it to have a 'front' concluding press-stud which on one way or the other than attaches to the curl(or loops) of the overhanging. The attractiveness of the overall portion will depend on the pin previously owned.
It is attainable to use two clasps of a ornate chic with one on each sideways of the pending twirl. The catch form clasps employment pretty fine visually but are not as immobilize as season laden types like the lobster unguis. Still, the hook method possibly will be world-class for semblance benefit. These solutions will bread and butter the zip and the undecided in first minus the hitch of 'roaming clasps' that meander up somewhere on the necklace prepare or so when tatterdemalion.