Large Antique Locket, hinge broken

Large Antique Art Nouveau Locket with Sapphires Pastes. Most probably golden plated.
It features a distinctive Art Nouveau Design with engravings and a central sapphire stone.
The Locket is large and oval shaped.
It is likely made out of gold filled material. Comm9n for lockets out of this period.
Most probably it is from 1910

The locket opens to reveal space for photographs or keepsakes.
I got it from my German grandaunt who was born around 1880.
Unfortunately the hinge is broken and needs to be replaced.
Very Rare item, couldn't find the same online anywhere. The closest to it is the one in last photo with a price of 365.37 Dollar
Think it is more than fair to ask for 100 Euro for it. Still a great bargain even if repairing costs are added to it. Presume it can't be much