Sterling Pendant Hallmark Mystery

[bigcaddy64]

One of my latest finds from a Saturday morning yardsale has me stumped.

The piece was in a really old box but the condition seems like it's a more modern piece.

The back simply reads 925 GSJ

I'm not sure what the stores are but they are jet black with the middle one being a rusty red color.

Anybody have any ideas? I can't find anything close to that mark.

 

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[SD51]

GSJ is the trademark / hallmark for Goldstone Jewelry Corporation.

On Friday, July 30, 1993, a U.S. federal trademark registration was filed for G.S.J. by GOLD STONE JEWELRY CORPORATION, New York, NY 10001.

 

[SD51]

Sorry, just woke-up from a nap. I should have said, "Gold Stone Jewelry Corporation".