What does 625 B NV on the inside of your ring mean?

625 B NV is a hallmark used to identify the metal content and origin of a ring. It stands for 625 Silver, British (B) Standard, and the NV is the maker's mark.

625 Silver is an alloy of 925 sterling silver and 75 parts of copper. It is more durable than sterling silver and is commonly used in jewellery making.

The British (B) Standard mark indicates that the ring meets the quality standards set by the British Standards Institution, a non-profit organisation responsible for developing and maintaining standards for a wide range of products and services.

The NV maker's mark is a unique identification code assigned to a specific manufacturer or jeweller. It allows for traceability and accountability in the jewellery industry.