3 - Direct measurement or string method

Take a piece of string, wrap it gently around the finger where you plan to wear the ring, and mark the length. 

• • Make sure the measurement is comfortable, neither too tight nor too loose. The right ring size is the one that allows you to put the ring on without difficulty, with slight resistance at the joint, but the ring must also be able to turn on the finger.  

• • Lay the string flat and measure its precise length on a tape or ruler.

Then use a conversion table to translate your finger length in millimetres into a standard ring size. These tables are easy to find and will give you an accurate match. If your measurement isn't right, go up a size.

There are a few things to bear in mind:

• •  Check the width of the ring Width can influence the ring size you choose. Wide rings tend to be more fitted, so if you're going for a larger ring, consider a slightly larger ring size. Usually one size is enough, but for a very wide ring that covers the entire phalanx, 2 sizes are sometimes necessary.

• • Take into account the material of the ring Precious metal rings, such as gold or platinum, tend to be heavier than silver or stainless steel rings. Heavier rings may require a slightly larger size for optimum comfort. 

• • Pay attention to conversions and ring size equivalents: In different countries, ring size measurement systems vary, sometimes making the choice complex: USA, France, Italy, Japan, it's all a bit confusing. A ring size chart can be particularly useful in simplifying this process. This chart gives an overview of the equivalences between the different sizes. In the European system, sizes are generally expressed in millimetres, corresponding to the circumference of the finger. So a European ring size of 52 would be equivalent to 52 cm, and will be close to a ring size 6 in the USA.

• • Measure the right finger Measure the finger of the hand on which you want to wear the ring, as measurements can vary from one hand to another. 

• • Watch your finger temperature Try to measure your finger when you are at a normal body temperature, as our fingers can swell a little in the heat. It is therefore advisable to avoid taking measurements when your finger is either hot or cold.

• • Time of day It is best to measure your finger at the end of the day when fingers are generally a little larger. If measurements vary according to the time of day, we recommend choosing the largest ring size.

• • Joint size If your knuckle is significantly larger than the base of your finger, measure the knuckle as well and choose a ring size that allows you to slip it on easily.