Need Help in Valuing this necklace/Craddagh

[deltamann]

I could really use some help in trying to value this necklace.
I found it metal detecting an old mid 1800's house in Central Virginia.

I know that the metal is silver and the heart is black onyx, anyone out there know what the other stones may be and what the value is?

Should I get a separate insurance binder on this piece or let it ride?

Thanks for all of your help!

 

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[OtraVez]

Wow that is cool looking, I just dug up a ring with the same funny gems on it and have no idea what they are! Does your pendant have any hallmarks on it?

 

[Goldirocks]

The stones are marcasites. It doesn't look that old but I could be wrong. I don't know what the value would be.

 

[diggummup]

Goldirocks is correct as to the marcasite. There have been several listed on ebay recently. Those with a buy it now price from 15.99 and up didn't sell. One did sell at auction (by one of my favorite sellers) for $6.51, which I believe is a little cheap, but still double the melt value. STERLING SILVER Vintage Handcrafted Black Onyx & Marcasite Claddagh Pendant | eBay Hope this helps.