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How Laser Ring Welding Fixes Fragile and Unfixable Rings


laser machine and a jeweler

This Jeweler Looks Through an Eye Piece to Focus the Laser on the Ring She is Sizing

A unfixable ring came my way. I say unfixable because that’s what they called it. “Can you size my emerald ring? I’ve been told it can’t be sized by two jewelers, but my friend said ‘Calla Gold is a miracle worker with jewelry.’ So could you help me?” Rhonda was a new client.

“Probably…though, what exactly did you want done?” I responded.

“It’s too tight, I can squeeze it on in the winter with soap and water, but I can’t wear it at all in the summer. I need you to make it bigger.”

“Great. Let’s get together and let me take a look it.”

Why Normal Open Flame Soldering Ruins Some Gems During Ring Sizing

torch with flame for solder

Open Flame Soldering uses a stream of controlled gas flame to heat the gold or metal to be worked on

Emeralds—as well as, many other gemstones, are heat sensitive. Normal open flame soldering heats up a large portion of the ring. The heat conducts quickly along the gold during this method of ring sizing. This heat can cause cracking, discoloration and shattering of sensitive gemstones.

Why Laser Ring Welding, is Like a Miracle for Jewelers

Laser is a acronym for “Light Amplification by the Stimulated Emission of Radiation.” Lasers produce focused beams of light to rapidly melt metal. Because the beam of light is so small, less overall heat is generated and small intricate work can be achieved by an experienced jeweler. For more technical data read this article.

cracked stone ring

The Setting is Keep This Stone Together

The old school sizing method would have required the removal of Rhonda’s emerald from the bezel setting prior to traditional flame soldering. The bezel—the thin rim of gold surrounding the gem and holding it in place—would have had to be cut open to remove the emerald, causing the setting to have to be rebuilt. This would have added considerable expense to the sizing.

The other thing to be aware of is that when certain fragile gemstones are removed from their settings, there is the possibility of them chipping or cracking.

This is especially true of softer gems, such as opals and emeralds. I’ve seen too many gems that were held together by their setting fall apart when that support was removed. Happily, having to remove the gem and risk it cracking may be able to be avoided with laser soldering.

Laser Welding Machines

Many jewelers don’t own, or have access to, laser welding machines. The main reason is because these precise instruments cost as much as a small car. Therefore jewelers with no access to laser machines will turn down work that requires laser techniques.

Laser Knowledge is Power

Bezel Set Emerald and Diamond Ring

Rhonda’s Bezel Set Fragile Emerald Ring, Much Loved and Much Worn

I wanted you to know about the availability of this technology. If no one laser welds and sizes in your area, you can still find someone who can safely work on your jewelry.

Look online to find a jeweler who offers laser welding services. It is worth mailing your piece to a distant jeweler if they have the expertise you need.

Rhonda is now wearing her emerald ring year round and is a very happy jewelry lover!

Who Ya Gonna Call?

Have you been told your jewelry couldn’t be worked on because of the risk of damaging the gemstones? Times have changed. Call me and let’s explore if laser ring welding could solve your unfixable jewelry problem.

Calla Gold

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About Calla Gold

Calla Gold is a Personal Jeweler and Author who takes pride in working with clients one-on-one to integrate their personal sense of style and taste into custom designed jewelry and repaired jewelry pieces.   Unlike typical Santa Barbara jewelry businesses, Calla Gold has no brick-and-mortar location. Calla Gold comes to you, bringing you the jewelry collection you want to see and collaborating with you to create unique custom jewelry. Calla also works with at-a-distance clients.

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Who ya gonna call? Calla Gold Jewelry of course. My mom, God rest her soul, had an inherited emerald eternity band ring that she could never wear because it was unsizable.
I’m going to see where it is and call you.


Calla Gold Jewelry,
That laser soldering of jewelry is so cool! I didn’t know about that. It sure saved the gems and the added expense. Who needs that?
Who knew jewelry repair could have technical breakthroughs and laser machines? Thank you for making it interesting.

Executive Coach

I do think restoring heirloom jewelry is like time travel! I think about my Nonnie every time I look at my grandmother’s ring that you so lovingly restored for me!
Dr. Lynn K. Jones, Certified Personal and Executive Coach


Do you know if sapphires can be damaged by a laser welder? Let’s say the jeweler meant to work on prongs and setting only, yet makes a mistake and hits the stones with the laser–could this cause inclusions to expand and break inside the stone?
Thanks very much for your insight,
Kathleen Childress, G.G.


Dear Calla Gold, thanks so much for your fast response…a jeweler friend had this experience with a laser welder whom he trusted with a sapphire & diamond ring (he’d louped the sapphires before giving the ring to the laser guy)…when he got the ring back, he immediately noticed inclusions and issues that weren’t there before! Then he started second-guessing himself…so I started doing research and found a credible resource, you! Much appreciated and thanks for your kind comments about my designs…made my day!(I follow you on Twitter and Instagram; I’m @innergems).


I have to say that Calla is by far one the most professional, talented and very accomodating people I have had the pleasure to speak to. I just love all your work and the care and love you put it each piece that makes it even more precious. The help and advice you have given me about the botched ring re-size was just what i needed to get it fixed properly. All the way from Northern Ireland and with time differences and the lot and you still made time to help me. Thank you so much for taking the time… Read more »


Hi Calla My wife’s platinum engagement ring was cut off with a bolt cutter in an ER after an injury. We just took it to a jeweler to repair, but they are concerned that the cuts were not straight and they were through the thin part of the shank. They think if they solder it it may be too weak. We’re hesitant to replace the whole shank since we’re sentimental about the whole ring, yet we wouldn’t want to risk it breaking and losing the whole thing. Would laser welding be stronger? If we replaced the shank, could we have… Read more »


Nice Blog. It’s a useful information for us. Thanks for sharing. Signavec Technology also provides machinery products like Laser Welding Machine, laser cutter, Laser cutting machines etc.

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