Wrap a piece of string, or a strip of paper no wider than 10 MM around the base of the finger that you would like your ring to fit on.
Use a pen or pencil to mark the point where the string or paper overlaps.
Unwrap the string or paper from your finger, and measure the length from the start of the string or paper to the mark that you have made in MM. Please be careful to start measuring from the correct end of the string or paper to the mark!
Compare this length with the chart below to establish your ring size
Please avoid measuring your fingers when they are cold, as at these times your fingers are at their smallest. Also, please check that you can slide your string or paper over your knuckle, before you mark the overlap point.
UK Ring Size
US Size (Approx)
EU Size (Approx)
How Can I Tell The Ring Size Of My Partner?
Why not 'borrow' one of your partner's rings (for the appropriate finger), and slide it down a tapered candle until it fits closely (don't push it too hard). Now you can measure the circumference of the candle at the point at which the ring fits, and use the table above to convert this into a Hot Diamonds ring size.
If you can't get your hands on one of your partner's rings, don't forget your partner's mother, or close friends – they might know!