If you want to give your girlfriend a ring but don't know her finger size, you can use the old ring measurement method, thin line measurement method, and photo evaluation method to solve the problem.
How to measure the size of a secretly bought ring
1. Old ring measurement method
If your girlfriend has a habit of wearing rings, you can measure the diameter of her existing or old ring. However, rings used as ACCESSORIES are often worn on the middle or index finger, and there may be a difference in size compared to the ring finger. You can consult the salesperson when purchasing.
2. Fine line measurement
While your girlfriend is asleep, secretly wrap a thin thread or piece of paper around her finger, mark the overlap, and measure the length to obtain the size of the ring. Please note that when using this method, the movements must be gentle and gentle to avoid waking up the other person and disrupting the sense of surprise.
3. Photo evaluation method
Take clear photos of your girlfriend's hands or daily life with your phone, then take them to the jewelry store and have the staff evaluate the size of her ring. Generally speaking, a salesperson can estimate the approximate size based on an individual's height, weight, and hand shape.
What to pay attention to when measuring ring size
1. It is recommended to choose a thin rope or paper without elasticity for measuring PROPS, and not to use cotton thread or rubber bands.
2. When reading values, the line of sight should be parallel to the scale being read to avoid errors caused by different angles, preferably accurate to 0.1mm.
3. Due to the easy thermal expansion and contraction of finger blood vessels, there may be deviations in measurements at different temperatures and seasons. Measurements may be tighter in summer and looser in winter. It is recommended to take the average of multiple measurements at different times.
4. There are different versions of the ring size comparison table, such as international version, mainland version, Hong Kong version, etc. Different versions correspond to different ring sizes. When purchasing, it is important to be clear which version of the ring size chart the brand is using.