TL;DR — The Quick Answer

Warm water, a drop of mild dish soap, and a soft toothbrush will safely clean about 90% of fine jewellery at home. Soak for 10–15 minutes, brush gently around the setting, rinse, and dry with a soft lint-free cloth. Skip toothpaste, bleach, and ultrasonic cleaners on emeralds, opals, pearls, turquoise, and any glued or fracture-filled stone. Bring it in once a year for a free professional clean and prong check at our Montréal store.

Table of Contents

1. The 90% method: warm water + dish soap + soft brush
2. What NOT to use (and why it ruins jewellery)
3. Cleaning by metal: gold, white gold, platinum, silver
4. Cleaning by stone: diamonds, emeralds, opals, pearls, sapphires
5. When to take jewellery off
6. How to store jewellery properly
7. Quebec winter: the dry-air problem nobody warns you about
8. When to bring it in for a professional clean
9. FAQ

1. The 90% Method: Warm Water, Mild Dish Soap, Soft Toothbrush

This is the method we recommend to almost every customer who walks into Bijouterie Jamil asking how to keep a ring looking new. It is boring, it is cheap, and it works.

What you need: - A small bowl of warm (not hot) water - One drop of mild dish soap — Dawn, Palmolive, the unscented kind is best - A brand-new soft-bristle toothbrush (kids' size works well around prongs) - A lint-free microfibre cloth

The steps: 1. Fill the bowl, add the soap, swirl gently. 2. Drop the piece in and let it soak 10–15 minutes. This loosens lotion, sunscreen, and skin oils that build up under the stone. 3. Lift the piece out and brush gently — front, back, sides, and especially the underside of the setting where grime collects and dulls the diamond's sparkle. 4. Rinse under lukewarm running water. Plug the sink first or use a strainer. Rings have a habit of finding the drain. 5. Pat dry with the microfibre cloth. Air-dry for a few minutes before putting it back on or in a box.

That's it. Do this every 2–3 weeks for daily-wear pieces and your ring will look like the day we set it.

2. What NOT to Use

This is the part that matters more than the method. Most damage we repair on the bench was caused by cleaning, not by wear.

• Toothpaste. It contains abrasives meant for tooth enamel, which is much harder than gold. Toothpaste will scratch a polished gold or silver finish in one cleaning. Hard pass.
• Bleach (chlorine). Chlorine eats the alloys in karat gold. It will literally pit and crack 14K and 18K over time. This is also why you take rings off before the pool — see section 5.
• Ammonia-based glass cleaners (Windex). Fine for plain gold or diamonds in a pinch, but they will damage pearls, opals, emeralds, turquoise, lapis, malachite, and any organic or porous gem.
• Baking soda paste. Same problem as toothpaste — abrasive enough to micro-scratch soft metals.
• Ultrasonic cleaners on the wrong stones. Ultrasonics use high-frequency vibration. They are excellent for diamonds in clean prong settings, terrible for emeralds (almost always fracture-filled with oil or resin), opals (water-bearing, can crack), pearls (porous, will dull), tanzanite, turquoise, and any antique piece with old solder joins.
• Steam cleaners at home. Same warning. Pressure + heat dislodges loose stones. Leave this to a jeweller's bench.
• Boiling water. Sudden temperature change can fracture stones with internal inclusions. Diamonds included.

If you remember one rule: soft, warm, mild. Anything harsher and you are gambling.

3. Cleaning by Metal

Yellow gold (10K, 14K, 18K, 22K)

The dish-soap method covers it. Gold itself does not tarnish, but the alloy metals mixed in (copper, silver, zinc) can oxidize and dull the surface. A polish at the bench restores it instantly. For more on alloys, see our gold karats explained guide.

White gold

White gold is yellow gold with white alloys (palladium or nickel) plus a thin rhodium plating on top to make it bright white. That plating wears off — typically every 12–24 months on a daily-wear ring. Cleaning at home does not remove rhodium, but you cannot restore it with a toothbrush either. When white gold starts looking yellowish or grey, bring it in for re-plating ($60–$120 CAD typical).

Platinum

Platinum is the most forgiving metal we work with. Soap and water, soft brush, done. Platinum develops a soft satin patina over years — many clients love it. If you want it bright again, that is a five-minute polish on our bench.

Sterling silver

Silver tarnishes — that is sulphur from the air reacting with the surface. The dish-soap method removes light tarnish. For heavier tarnish, a silver polishing cloth (impregnated with a mild polish) works well. Avoid silver dips for pieces with stones or oxidized details — the dip will strip the antiquing you paid for.

4. Cleaning by Stone

Diamonds

The hardest natural material on the planet. Soak, brush, rinse — diamonds love a deep clean. The underside of the diamond is where light enters; if it is greasy, the stone looks lifeless no matter how clean the top is. Brush there.

Sapphires and rubies (corundum family)

Hard and stable. Treat them like diamonds.

Emeralds

Almost every emerald on the market is oil-treated or resin-filled to mask natural fractures. Soap and a soft cloth only. No ultrasonic. No steam. No hot water. If your emerald looks dry or cloudy after a few years, that is the oil drying out — we can re-oil it on the bench.

Opals

Opals contain 5–10% water. They crack when they dry out or hit a sudden temperature change. Wipe with a damp soft cloth, that is it. Never soak. Never ultrasonic. Store away from direct sunlight and dry winter air (more on that in section 7).

Pearls

Organic, porous, and the softest gem we sell (2.5–4 on the Mohs scale). Wipe with a damp cloth after every wear to remove perfume, sweat, and skin oils. Never soak pearls. Never use any cleaning solution. Restring strands every 2–3 years if worn often — silk stretches and the knots wear through.

Turquoise, lapis, malachite, coral, amber

Treat all of these like opals: damp cloth, no soaking, no chemicals.

5. When to Take Your Jewellery OFF

Most damage happens during five minutes of forgetfulness. Build the habit of removing rings and bracelets for:

• The gym. Weights bend prongs and warp shanks. We re-tip a lot of engagement rings for this exact reason.
• The pool and the hot tub. Chlorine attacks gold alloys and rubber-mounted stones. Bromine in hot tubs is worse.
• The shower. Soap film builds up under stones and dulls them within weeks. It is the #1 cause of "my diamond doesn't sparkle anymore."
• Gardening, cleaning, dishes. Dirt under the setting, scratches on the metal, snags on gloves. Take it off.
• Lotion, sunscreen, perfume. Apply first, let it dry, then put the ring on. Sunscreen film is almost impossible to remove without a professional clean.
• Sleep, if your stone is high-set. Sheets and hair catch prongs. We see at least one loose-stone repair per week traced back to bedding.

A small dish on the nightstand and a second one by the kitchen sink solves 80% of this.

6. How to Store Jewellery Properly

Three rules: separate, dry, dark.

• Separate — diamonds scratch every other gem and metal. Store each piece in its own pouch or compartment. A divided jewellery box with soft lining works. Ziploc bags do too in a pinch.
• Dry — humidity accelerates tarnish on silver and corrodes alloy metals. A small silica gel packet in your jewellery box (the kind that comes in shoeboxes) makes a real difference. Replace it every 6 months.
• Dark — UV light fades amethyst, kunzite, topaz, and pearls over years. Keep them out of windowsills.

For silver, anti-tarnish strips (3M brand) inside the box slow oxidation by months. For pearls, store flat — hanging stretches the silk.

7. Quebec Winter: The Dry-Air Problem

Here is something most cleaning guides skip. From November to March in Montréal, indoor heating drops humidity to 15–25% — desert levels. That dry air is hard on:

• Opals — they shrink and craze. Store them in a small sealed container with a slightly damp cotton ball (not touching the stone) during winter.
• Pearls — silk strands get brittle, knots fail. Wear pearls more often in winter, not less. Skin oils help.
• Wood-inlay or enamel pieces — the bond can crack as materials shrink at different rates.
• Your fingers, which is why rings feel loose in February and tight in July. Do not have your ring re-sized in winter without telling us — we account for the seasonal swing.

A small humidifier in the bedroom helps both you and your jewellery box.

8. When to Bring It in for a Professional Clean

Once a year, minimum. We do this free of charge for Bijouterie Jamil customers — bring the piece in, leave it 20–30 minutes, walk through the Plateau or grab a coffee. We will:

• Ultrasonic clean (where safe)
• Steam clean
• Inspect every prong under the loupe
• Tighten loose stones
• Polish out light scratches
• Re-rhodium plate white gold if needed (small fee)
• Flag anything that needs repair before it becomes a lost-stone emergency

Bring it in immediately, not at the next annual visit, if: - A stone wiggles when you tap the setting - A prong looks bent or shorter than the others - You can see a hairline crack in the band - A chain has a kinked or stretched link - Your white gold has gone yellowish

We also handle pieces bought elsewhere. For more on what we can repair, see our jewellery repair services overview. For laser-welding work that lets us repair near heat-sensitive stones, see laser welding and soldering.

If you are noticing tarnish or discolouration that cleaning won't lift, the cause is usually the metal itself reacting to your skin chemistry or a chlorinated environment — read why jewellery tarnishes for the full breakdown.

FAQ

Can I use jewellery cleaner from the drugstore? Most commercial liquid cleaners are fine for plain gold and diamonds, but read the label — many contain ammonia, which destroys pearls, opals, and emeralds. Dish soap is safer and just as effective.

How often should I clean my engagement ring at home? Every 2–3 weeks if you wear it daily. Lotions, sunscreen, and skin oils build up under the diamond surprisingly fast and that is what kills the sparkle.

Is an ultrasonic cleaner worth buying for home use? For a single diamond solitaire in a clean prong setting, it is fine and effective. For anything else — emeralds, opals, pearls, antique pieces, fracture-filled stones, or rings with multiple gems — it is risky. We use one on the bench because we can inspect every piece first.

My gold ring turned my finger black. Is it fake? Almost never. It is usually a chemical reaction between alloy metals (copper or nickel) and your skin's pH, sweat, lotions, or cleaning products you handled. A polish at the bench fixes the ring; your skin clears in a day.

Can I shower with my engagement ring on? You can, but you shouldn't. Soap film builds up under the stone and dulls it, and rings slip off slick wet fingers more than people realise. The drain is unforgiving.

How do I clean a piece I just had repaired? For the first 48 hours after a solder or laser repair, keep it dry. After that, the dish-soap method is safe. Avoid ultrasonic cleaning on a freshly repaired piece for the first week — that is also when we check on you for any post-repair concerns.

Is professional cleaning really free at Bijouterie Jamil? Yes — for any piece purchased from us, professional cleaning is free for the life of the piece. For pieces from elsewhere, we charge a small fee ($25–$50 CAD typical depending on complexity) which includes inspection and minor prong tightening.

What about cleaning a watch at home? Wipe the case and bracelet with a slightly damp microfibre cloth. Never submerge a watch unless you know its current water resistance rating — gaskets dry out over time even on watches rated 100m new. For more, see watch servicing and battery replacement.

Bring It In for a Free Inspection

If you have not had your fine jewellery looked at in over a year, walk it into our Montréal showroom. We will clean it, check the prongs, and give you an honest read on what (if anything) needs work. No appointment needed for a clean and check — but if you want a longer conversation, book a consultation.

Nader Khazzoum is a master jeweller at Bijouterie Jamil in Montréal, second-generation in a family business serving Québec since the 1960s. He specialises in custom fabrication, stone setting, and laser welding repair.