The Goldsmiths' Company Assay Office appeared on Fake Britain last week.
The overall number of items hallmarked increased, despite only silver experiencing growth.
hallmarking
The number of articles hallmarked were down in June and Q2 2019, latest figures reveal.
All metals apart from palladium recorded an increase in the number of articles hallmarked in April 2019.
Figures compiled by the Birmingham Assay Office show hallmarking increased by 3% in March and by 1.9% in Q1 2019.
Figures compiled by Assay Office Birmingham reveal a 5.4% decrease in the number of articles hallmarked.
All metals apart from palladium witnessed an increase in articles hallmarked in January.
Hallmarking figures cite a dip in the number of articles hallmarked in 2018.
The overall number of items hallmarked increased, with silver citing the greatest growth.
Next year London’s Goldsmiths’ Hall will host the nation's largest careers event for jewellery apprentices, students and graduates.