Rosecut diamond ring..foil-backed?

[billieb]

Hello,
I have recently come across a ring made in the Netherlands in the 1940s. It is a rosecut diamond in a sterling silver setting and an 18k yellow gold band. It is closed back, which leads me to believe that the rosecut diamond is foil-backed. I would really like to know if this is the case so that I can be extra sure protect it from water damage. Based on its age, origin, and photos, does anybody have input on whether this could be foil-backed or not? Also any tips on how to determine this? I really appreciate any input!
!

 

[Christina Abba 1]

Hello,
I have recently come across a ring made in the Netherlands in the 1940s. It is a rosecut diamond in a sterling silver setting and an 18k yellow gold band. It is closed back, which leads me to believe that the rosecut diamond is foil-backed. I would really like to know if this is the case so that I can be extra sure protect it from water damage. Based on its age, origin, and photos, does anybody have input on whether this could be foil-backed or not? Also any tips on how to determine this? I really appreciate any input!
!

I think it does look foil backed ....with that metallic lustre and the underside of the ring looks like Georgian design/ style ....although I’m certainly no expert ....just what I’ve read....is the date definitely 1940’s ??

 

[Daisys and Diamonds]

Lets bump this and see who else wants to chime in

 

[fel]

Looks foil-backed to me. Lovely!