Ask a close friend or family member if they happen to know the size. Occasionally, friends may have swapped jewelry in the past or discussed sizes during previous shopping trips. Direct Measurement
Take one of their existing rings to a jeweler for a professional measurement. Ensure the ring you grab is one they wear on their "ring finger" to ensure the most accurate comparison. how do you know what size engagement ring to buy
If you want to keep the proposal a secret, you’ll need to be resourceful. Ask a close friend or family member if