I'm the world's worst photographer. You can't see it too good but the stones have a nice cut--the table is like a square with rounded sides. it's stamped 925. Can't see the other mark very good but thing it is GP. Looked on ebay and found some like it $1200-$1700.
Just thought I should mention in afterthought the tone was not the same as a crusted zinc--in was smoother, cleaner, more steady. Actually sounded kinda plain. Crusted zincs have a scratchy sound but the VDI was similar.
Nobody wants to tell me they think this one is fake. LOL I spent most of my life working construction. Not afraid to speak my mind. Too blunt most of the time. Sorry if I offended anyone.
Pictures don't always tell the whole story.
The best way to know for sure is to have it tested by a jewler.
Not to often they would put diamonds in a plated setting, so.....
Rhodium plating over sterling is for people with allergies. Jewelry that is worn a lot may need re-plating every two years. But I'm leaning to the realization that it's fake.