Vintage Sterling Silver Irish Connemara Star Brooch Pin Marcasite Dublin Hallmark Green Marble Ireland Celtic Gaelic Jewelry Jewellery vintage razor blade leading me to believe it's

leading me to believe it's a natural stone but I'm not 100% sure without sending it of for a laboratory test

the locket has a solid 9ct 375 sheet of gold on the front and back (the engine turned sections) and the chased border is rolled gold

93g and the clasp opens and closes tightly

in an unusual shape and finished with hand engraving

The item is stamped "STG SIL" on the rear

Vintage Sterling Silver Irish Connemara Star Brooch Pin Marcasite Dublin Hallmark Green Marble Ireland Celtic Gaelic Jewelry Jewellery vintage razor blade leading me to believe it'sDESCRIPTION: A beautiful vintage sterling silver Irish star brooch, adorned with genuine Connemara marble and marcasites. The piece is hallmarked with Dublin silver hallmarks. It weighs approx. 5. 93g and the size dimensions are in the later photos.