What if I don’t know my girlfriend’s finger size?
Try to find one of her old rings and bring it to a jeweler. He or she will gladly tell you the answer by slipping the ring on a metal ring size gauge called a mandrill.
It is important to know which finger she wears the ring on, for most of the time the right hand is slightly larger than the left hand. Also, one will take a larger size for a wide band than a thin band.
Note that the only way to accurately measure someone’s finger is to bring them to the jeweler directly.
Wishing you a brilliant day!
Diamond Mike Watson
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