This will need some forensic work to get to the bottom of this failure. Its afterall mainly a metallurgical issue… But before we get this far, some nos would be useful. As theres no name and address disclosed,
- what was the original purchase price of this e ring?
- what was then the additional cost of modifying it to its larger stone and setting?
then what did you have it insured for?
- The total cost amount? to?.
- That is what you are looking for to replace it.
Now the forensic stuff.
Here in the uk we have our exceptional Gov assay office for hallmarking such items, and use a non destructive spark erosion analysis to accurately identify the elements in ANY metal object accurate to 1%.
This is for a nominal cost excluding to and fro insured costs of under $50.
They will tell you if and what metals were used to make the modification, and if a white gold solder of lower quality was used.
Once you have this knowhow you can tell your insurance co of the failure either from the use of the wrong remaking alloy or if its all platinum, then the technique was completly faulty. and then the jeweller? who did the alteration, that it was totally unfit for purpose.
Next, To get a new price for the remake theres only one person good enough here and thats Jim Grahl on your West coast.
his work is impeccable particularly in platinum.
This price is what your claiming for from this so called jeweller.
The sooner he knows what hes in for the better.
As to the pictures, they show what appears to be an oxidised non metallic joint with no proper clean metal continuity from the ring band to the stone base setting.
Verdict, a complete balls up of joint assembly.
Master metal worker.