Looks like a "marriage" piece,there appears to be a mark on the bottom back next to one of the raised "balls" on the right.
Looks like it was a religious jewelry company............... https://www.rubylane.com/jewelry?cat=Jewelry&q=sterling%20creed
It looks like it has bubbles and was probably heated when applied.Try alcohol,paint thinner,WD-40 and possibly a hair dryer to heat up the silver...
What is the black coating on the bottom inside?It looks like part of it has flaked off and the "box" with the A may have another symbol with the A.
@HMAC The carved stone is hand carved,it is not machine carved as the workmanship is too sloppy for a machine.
The ring looks like a bad casting,not sure what to make of the rough filing on the inside.The name appears to have been done with an onglette...
Everyone uses pliers on silver items especially the people who make and repair them. A couple layers of masking tape on the jaws or card stock on...
It doesn't look like 10K,looks the plating is peeling on the right and left crown point junctions.
The red stone in the pendant looks like a badly cut garnet.
looks like a bear
@aaroncab You might find this bio a little interesting. http://www.moonmetalsmithing.com/about.html
The bottom stone on the pendant looks like some type of jasper,top stone may be citrine. Earrings don't show anything to be specific.
People have been making faux tortoise shell for many years with different materials....
The chasing is very "rough" and not high quality,probably done by a beginner in a street shop.
I don't see anything "woven" it's twisted wire.
Looks like a hobbyist/student piece,the jump ring on the toggle was almost sawn apart when making the ring.
The broken stone is free form cut,would have more luck finding a hundred dollar bill on a busy sidewalk than finding a stone to fit the bezel.
Need a larger photo,no one can tell anything from a postage stamp sized photo. From what little i can see it is not niello....
Looks like the same person in all photos.
Try "ouroboros" a dragon swallowing it's tail.
Separate names with a comma.