Trying on someone's engagement ring
Trying on someone's engagement ring is largely a question of manners and fit: the ring was sized for one finger and chosen for one person. Slipping it on lets you borrow, for a minute, a milestone that belongs to someone else.
What it may mean
A friend holds out her hand, you admire the stone, and then comes the question: may I try it on? Some owners slide it off at once; others hesitate and keep it on their own finger. Both reactions make sense. The ring was sized for one hand, picked with one person in mind and has been on that hand since a particular night. On yours it may spin loosely or stop at the knuckle. That small mismatch carries a thought worth keeping. Trying on someone else's milestone (a ring, a promotion, a new house) tells you more about your own hand than about theirs. It may feel wonderful, or simply strange, and either answer is useful to know. Asking first costs nothing and spares both of you an awkward moment at the knuckle.
Depending on how you saw it
When a friend offers it without being asked
Many owners prefer to show a ring on their own hand, so offering it to you is a mark of closeness. For a moment they are trusting you with something that cannot be replaced at any price. Which treasured thing of yours have you let someone hold, and how did it feel to hand it over?
A ring that will not come back off
A ring often slides over someone else's knuckle more easily than it comes back, especially on a warm day, and a few awkward minutes with cold water and soap follow. What did you step into easily that is proving harder to step out of?
The old warning aimed at the buyer
A 1903 encyclopedia warned that a man who tries an engagement ring on anyone but his bride will never marry the woman he bought it for. That rule was aimed at the buyer, not the admiring friend. Which rules in your life were written with someone else in mind?
Trying rings on in a jewelry store
Many couples try on dozens of rings before choosing, learning sizes and shapes they would never have guessed from a picture. Trying is how they find out. Which choice in your life would go better if you tried a few versions before deciding?
Why it happens in nature
Rings are sized to a single finger, and fingers change through the day, swelling in heat and shrinking in the cold. Because the knuckle is wider than the base of the finger, a ring that passes over someone else's knuckle can stick on the way off. Engagement rings are often resized only once, so owners tend to guard the fit.
To reflect on
Whose milestone have you tried on in your imagination, and how did it fit you?