How often should prongs on a lab-diamond ring be checked?

ZKZ Editorial TeamMain answer · Product & gemmology desk

Have a jeweller check the ring at least once a year, and every six months if you wear it daily or work with your hands. Between visits, do a quick check at home about once a month. Loose prongs are cheap to fix, but a lost stone is not.

What the care guides say

Fact IGI says it is prudent to have jewelry checked by a professional for worn mountings, loose prongs and general condition about once a year, and that most jewellers combine this with a professional clean.

Fact GIA advises that jewelry should be checked every six months and cleaned frequently.

Fact Jewelers Mutual advises visiting a jeweller at least twice a year to catch minor issues before they grow, and notes that a ring that catches on clothing, blankets or hair may have a prong problem.

Our advice The three sources differ, from once to twice a year. For a daily-worn silver ring, we would follow the more frequent end, because silver is softer than gold and prongs wear faster.

A quick monthly check at home

1. Look. Hold the ring under a bright light and check that each prong touches the stone and that no prong looks shorter, flatter or bent.
2. Listen. Hold the ring near your ear and tap it gently. A rattle suggests that the stone is loose.
3. Feel. Press the stone gently with a fingertip or a soft toothpick. It should not move.
4. Snag test. Run a thin cotton thread or a soft fabric over the top. If it catches, a prong may be lifting.
5. Compare. Look at the ring from the side, to see that the stone sits level.

Warning signs

• A stone that moves, rattles or has changed height.
• A prong that looks thin, sharp, bent or missing.
• The ring catching on fabric, hair or tights.
• A gap between the stone and the metal.
• Dull patches that mean the stone is dirty or has shifted.

What to do

Our advice If you find any of these, stop wearing the ring and take it to a jeweller. Do not try to bend a prong back yourself, as it can snap.

It depends How often you need a check depends on how much you wear the ring and what you do with your hands. If you rarely wear it, once a year is enough.

Uncertain There is no standard interval, and the differences between the sources show it. When in doubt, pick the shorter one.

Related reading: Resizing and Maintaining a Lab Diamond Ring · Setting Styles for Engagement Rings: Solitaire, Halo, Pave and Bezel

Sources

• IGI, Never do this with your jewelry
• GIA, Tips on caring for jewelry
• 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.