How to Clean 18K Gold and Gemstone Jewelry at Home

Worn every day, fine jewelry gradually collects traces of skin oils, cosmetics, perfume and dust that dull its shine. Knowing how to clean gold jewelry properly at home keeps your pieces radiant, but the right method depends on both the metal and the gemstones. What works perfectly for a sapphire can harm a tanzanite.

This guide gives you a safe, universal method for 18k gold, then specific advice for each type of gemstone, and the mistakes to avoid.

The Universal Gentle Method

This method is safe for 18k gold and almost all gemstones. When in doubt, it is the one to use.

What You Need

A small bowl of lukewarm water, never hot; a few drops of mild, fragrance-free dish soap; a very soft toothbrush or makeup brush; and a lint-free microfiber or cotton cloth.

Step by Step

First, let the jewelry soak for a few minutes in the lukewarm soapy water to loosen residue. Then gently brush the piece, paying attention to the back of the stones and the settings, where dirt accumulates and dims the brilliance. Rinse under lukewarm running water, with the sink plugged or over a bowl to avoid any loss. Finally, pat dry with a soft cloth and let it air dry completely before storing.

Cleaning Gold Chains

Fine chains, like the white gold micro cable chain necklace, attract residue between the links. Soak them, then gently roll the chain between your fingers in the soapy water rather than brushing hard, which could tangle or stretch the links. For more structured chains, like the paperclip chain necklace, a soft brush works well. Always dry chains laid flat to avoid kinks.

White Gold

White gold is often finished with rhodium plating for extra brightness. Regular gentle cleaning preserves it, but abrasive products or polishing cloths used too vigorously can wear it down. After a few years, a jeweler can re-plate white gold to restore its original brightness. To understand gold alloys better, read what 18k gold is.

Cleaning Advice Stone by Stone

Diamonds and Sapphires

Diamonds and sapphires are the hardest gemstones and tolerate the universal method very well. Diamonds attract oils, so regular cleaning makes a spectacular difference to their sparkle. Discover our sapphire jewelry.

Tourmaline, Rubellite and Indicolite

Tourmalines are durable but sensitive to sudden temperature changes. Stick to lukewarm water and never use steam or heat. Learn more about this family in our tourmaline fine jewelry collection.

Tanzanite

Tanzanite deserves special care. It is softer than sapphire and sensitive to heat and shocks. Clean it only with the gentle method, never with an ultrasonic cleaner or steam, and avoid thermal shocks. See our tanzanite jewelry and the story of tanzanites.

Blue Zircon

Blue zircon is brilliant but its facet edges can wear if knocked. Clean it gently, avoid ultrasonic and steam cleaning, and keep it away from prolonged strong heat. Read the story of blue zircon.

Garnets: Tsavorite and Spessartite

Tsavorite and spessartite are generally untreated and tolerate the gentle method well. As with other stones, avoid thermal shocks and harsh chemicals.

Emeralds and Treated Stones

Emeralds are usually treated with oils or resins. Never use ultrasonic cleaners, steam or solvents; a quick wipe and a gentle lukewarm rinse are enough.

What to Avoid

Avoid household chemicals such as bleach, ammonia and acetone, which can damage both metals and stones. Avoid toothpaste and baking soda, which are abrasive and can scratch gold and softer stones. Avoid hot water and steam for heat-sensitive stones, and do not use ultrasonic cleaners at home unless you are certain the stones tolerate them. Finally, never soak pieces for hours, especially with delicate stones.

Prevention: The Best Cleaning

The best way to keep jewelry clean is to protect it. Put your jewelry on last, after perfume, creams and hairspray, and take it off first. Remove it before sports, swimming, cleaning or gardening. Store each piece separately in a soft pouch or compartment so harder stones do not scratch softer ones, and hang or lay chains flat to prevent tangling.

When to See a Jeweler

Once a year, it is wise to have a professional check your jewelry, especially rings worn daily. A jeweler can verify that stones are securely set, clean hard-to-reach areas and restore the finish. Our full product care guide details our recommendations, our FAQ answers common questions, and our team remains available via the contact page for any specific advice about your piece.

Summary

To clean gold jewelry at home, use lukewarm water, a few drops of mild soap and a soft brush, then rinse and dry gently. Diamonds and sapphires tolerate this very well; tourmaline, tanzanite and blue zircon require extra gentleness and no heat, steam or ultrasonic cleaning; emeralds need the lightest touch. Avoid chemicals and abrasives, put jewelry on last and take it off first, store pieces separately and have them checked by a jeweler once a year.