Freshwater pearls necklace help to identify maker

[Judypearli]

Any help is much appreciated.
The necklace measures 48”. There’s a small diamond near the top left of the loop.
HU on the back BUT the U is attached to the right vertical line of the H and 585 next to it.
The shape of the pendant looks like an L to me.
Thank you for any of your expertise.

 

[ennui]

Well, 585 is 14K gold. That's a cool enhancer! I suggest that the enhancer was a separate purchase and added later.

 

[Pearl Dreams]

I agree entirely. Very nice enhancer, added later.
Necklace itself seems quite generic.

 

[ennui]

The rope is freshwater pearls, btw.

 

[Judypearli]

Thanks so much for your replies.
There is no clasp. It looks like the enhancement was attached on a thread.
So the freshwater pearls are generic. Would you please explain what that means. I’m assuming “nothing special”. Being that the necklace is 48” long I can understand that!