Hallmarking

All Yvonne Bolger Jewellery is Stamped with the Hallmark of the Dublin Assay Office as well as my makers mark YB

The Assay Office are certifying the purity and quality of the precious metals used in my pieces. 

The Dublin Assay Office is located in the Dublin Castle Complex. The Company of Goldsmiths of Dublin governs the Assay Office. The Company was established and incorporated by royal charter of Charles I on 22nd December 1637. The craft of goldsmith existed in Ireland long before this, during the prehistoric times as early as 1800 BC. 

End of History Lesson !