How do I size a ring for a swollen knuckle or arthritis?

ZKZ Editorial TeamMain answer · Product & gemmology desk

The ring has to pass the knuckle and also sit securely at the base. Options include sizing for the knuckle and using a guard, choosing adjustable or hinged styles, or picking rings designed with an opening.

Measure both points

1. Measure the circumference at the base of the finger.
2. Measure at the knuckle at its largest.
3. Note the difference between the two.

Our advice If the knuckle is much larger than the base, a ring sized for the base will not pass, and one sized for the knuckle will spin at the base.

Options

• Size for the knuckle and add a guard or beads to hold the ring in place at the base.
• Choose an adjustable or open ring that flexes to pass the knuckle.
• Choose a hinged or split shank designed for this purpose.
• Wear the ring on another finger with a smaller knuckle.
• Choose a smooth, comfort-fit band that slides more easily.

What to avoid

• Forcing a ring over a swollen knuckle
• Wearing a ring that is tight enough to mark the skin
• Wearing rings during a flare-up

Seek advice

Our advice If your fingers swell, ache or change size frequently, a doctor or occupational therapist can advise on what is safe to wear. A jeweller can advise on the ring.

Fact Jewelers Mutual advise that a damaged or fragile ring should not be worn, and that a jeweller can examine and repair it.

It depends What works depends on your joint shape and how much it changes. Some days a ring may be comfortable and others not.

Buying

• Choose a seller with a clear exchange policy
• Ask about adjustable or special-shank styles

Our advice Measure at the end of the day and again on another day, because fingers can change through the day. Compare the knuckle with the base of the finger, and choose a size that passes the knuckle without being loose at the base.

Our advice Ask a jeweller about options for the same ring, such as an adjustable shank or sizing beads, if one size does not work for both.

Uncertain We cannot give medical advice. If a ring is painful or will not come off, seek help.

Related reading: What ring size should I buy for a surprise gift? · How to Find Your Ring Size at Home (Free Printable Method)

Sources

• Jewelers Mutual, What to do if you need a ring repair

Fact = stated by the cited source. Our advice = editorial recommendation. Uncertain / it depends = limits of what can be said in general.