How to Re-Oxidize Sterling Silver
Jewelry at Home

Mixing metals has been part of my design language for as long as I can remember. I love the contrast of bright gold and silver against that deep, dark finish, and oxidized sterling silver has become one of the most recognizable elements in CMD jewelry.

If you own one of my oxidized sterling silver pieces, you already know that the dark finish changes with wear. That's part of what I love about it. The oxidation naturally evolves as the jewelry rubs against your skin, clothing and the world around you, revealing brighter silver in some areas while staying darker in others.

If you'd rather bring some of that deep, dark color back, here's the good news: certain sterling silver jewelry can be re-oxidized at home using liver of sulfur. With a little patience, you can gradually build that beautiful charcoal-to-black finish again, and our At-Home Oxidation Kit gives you what you need to do it yourself.

WHAT IS OXIDIZED SILVER?

Oxidized silver is sterling silver that has been intentionally treated to accelerate the same type of surface reaction responsible for silver tarnish. Silver reacts with sulfur-containing compounds and forms a darker layer on the surface of the metal. Instead of polishing that color away, we're encouraging it until we get the rich, dark finish we're after.

One important thing to know is that oxidation is a surface treatment, which means it isn't permanent. Friction, water, lotions, oils and everyday wear gradually polish away some of that darkened surface, especially on rings and other pieces that come into frequent contact with your skin and surroundings.

Eventually, your jewelry develops its own patina as some areas lighten while recessed or protected areas remain darker. I happen to love that evolution. Your piece starts looking like something that has actually lived a life with you.

If you're curious about why oxidized silver changes, how long the finish lasts and why some people's jewelry changes faster than others, I wrote much more about it in Does Oxidized Silver Jewelry Stay Black Forever?

BEFORE YOU RE-OXIDIZE YOUR JEWELRY AT HOME

Not every piece of jewelry is a good candidate for a DIY oxidation project. If you're working with CMD jewelry, we only recommend re-oxidizing our monotone sterling silver jewelry at home. Pieces with other metals, finishes or components may require a different approach.

If you have a two-tone piece or one of our channel-detailed designs, please don't try to restore the oxidation yourself. Reach out to us instead and we'll help you determine the best way to care for your particular piece.

If your jewelry is a good candidate for DIY re-oxidation, you can find the supplies you need in our At-Home Oxidation Kit, or follow along below to see how we do it.

WHAT YOU'LL NEED

Liver of sulfur chips
Disposable gloves
Non-scratch scour pad
Two glass containers
Hot water
Cold water
Fan or good ventilation
Dishcloth

A quick note before you start: Liver of sulfur has a very distinctive rotten-egg smell, so work in a well-ventilated area with a fan nearby. Wear gloves and follow the instructions and safety precautions provided with the liver of sulfur product you're using. It's also a good idea to remove any jewelry or metal objects you're wearing that you don't want accidentally darkened.

HOW TO RE-OXIDIZE YOUR STERLING SILVER

1. CLEAN YOUR JEWELRY

Before you begin, thoroughly clean the sterling silver you want to oxidize. Oils, lotion and other residue can interfere with the process and contribute to an uneven finish, so you want to begin with a very clean surface. Rinse the piece well before moving on.

2. PREPARE THE LIVER OF SULFUR

Add a small chip of liver of sulfur to a glass container, then add hot water. The chip will dissolve and the water will begin to change color. Follow the instructions provided with your liver of sulfur product and resist the temptation to make the solution unnecessarily strong.

3. DIP YOUR JEWELRY

Once the sulfur has dissolved, place your sterling silver jewelry into the solution. Oxidation should begin quickly. Leave the piece in the solution briefly, watching as a thin layer of oxidation develops.

4. REMOVE AND GENTLY BUFF

Wearing gloves, remove the jewelry from the solution and use a non-scratch scour pad to gently rub the surface. This gives you more control over the developing finish and helps you build the oxidation gradually rather than trying to reach deep black in one long soak.

5. REPEAT UNTIL YOU REACH THE COLOR YOU WANT

Return the jewelry to the liver of sulfur solution and repeat the process until you've reached the depth of color you want. Several thinner layers give you much more control than trying to get all the way to black at once, so there's no need to rush it.

6. FINISH AND RINSE THOROUGHLY

Once you're happy with the finish, remove the jewelry from the solution and give it one final gentle rub with the scour pad. Place the piece into cold water to stop the process, rinse it thoroughly and dry it completely.

WHY IS MY OXIDATION FLAKING OFF?

If the dark finish begins flaking, you may have built the oxidation too heavily or too quickly. Your liver of sulfur solution may have been too concentrated, the piece may have stayed submerged too long or the surface may not have been cleaned sufficiently before you started.

Gently remove any loose oxidation with your non-scratch scour pad and try again with a fresh, weaker solution if necessary. Building several thin layers gives you much more control and generally creates a more even finish than trying to reach deep black in one shot.

WHY DID MY LIVER OF SULFUR STOP WORKING?

Temperature can affect the speed of the reaction, so you may notice that the process slows as your solution cools. Rather than continuing to add more liver of sulfur to compensate, prepare or refresh your solution according to the product instructions and continue building the finish gradually.

HOW LONG WILL THE BLACK FINISH LAST?

There's no universal answer, and that's one of the things I've always found interesting about oxidized jewelry. The finish tends to wear more quickly on rings and bracelets because they're exposed to more friction, water, oils and everyday contact. Other pieces or protected areas of a design may hold their dark finish considerably longer.

That's why I don't think of oxidation as a finish that needs to remain perfectly black forever. It changes with you. Bright silver begins to peek through in the areas you touch and wear the most while deeper or recessed areas stay dark, creating an antique-like patina that's completely individual to the piece.

You can help preserve the finish by being mindful of water, lotions, chemicals and friction. For more recommendations on caring for your jewelry, visit our Product Care page or read Does Oxidized Silver Jewelry Stay Black Forever?.

DIY OR SEND IT BACK TO CMD?

If your monotone sterling silver CMD jewelry needs a refresh and getting crafty sounds fun, our At-Home Oxidation Kit makes it easy to have what you need in one place. And once you've done it once, you can repeat the process whenever you'd like to bring some of that darker finish back.

If you'd rather leave the finishing to us, that's completely fine too. We offer professional re-oxidizing services for CMD jewelry for a small fee. Get in touch with us and we'll help you figure out the best next step for your piece.

Whether you do it yourself or send it back to our studio, I love that oxidation isn't frozen in time. It wears, changes and can be brought back again. That's pretty appropriate for jewelry that's meant to be worn, lived in and made your own.

Keep mixing those metals,
Colleen

 

© Colleen Mauer Designs. All rights reserved.
Published: May 21, 2019
Updated: August 23, 2026