Ruby and Diamond Necklace with Maker's Mark IL 1?

[NrsSteph]

Beautiful necklace in 14K Yellow Gold with Marquise Rubies and Diamonds- marked IL 1?

Front of necklace


Maker's Mark:




I appreciate any information!

[NrsSteph]

It also has a NB on it, so unsure which one is the Maker's Mark?

[dognose]

Hi,

Please post an image of the other mark.

Trev.

[NrsSteph]

NB Mark on Clasp:

[AG2012]

Jewelry like this necklace is not hand-made or custom made today, although you can choose from the product range.
In this particular case the maker is IL 1. The clasp with LB is bought from elsewhere by the maker of the necklace. Those clasps are machine made with steel spring inside and it does not pay off for every jeweler to make his own clasps.
Where is the mark for 14K gold, or I missed something?