Ring Shank Replacement: When a Worn Band Needs New Metal
The shank is the band of a ring, the part that goes around the finger below the stones. On a ring worn every day for fifteen or twenty years, the bottom of the shank gets thinner, and eventually it gets thin enough to bend, crack or snap. A goldsmith fixes that by cutting away the worn section and joining new metal in its place. This guide covers how to tell when your ring needs it, what the work involves, and the questions to ask so the repaired ring still matches the stamp inside it.
Why ring bands wear thin
Every time a ring brushes against a desk, a steering wheel or a grocery bag, a tiny amount of metal comes off. Gold is soft compared with the things it rubs against, and the underside of the band, the part that faces the palm, takes most of the contact. This is normal for any metal ring worn daily for decades.
Platinum wears differently. Material published by Platinum Guild International on Ganoksin explains that when platinum is scratched, the scratch actually displaces the metal, pushing it to the sides, while other precious metals lose metal when scratched and wear down faster. The same article notes that over time prongs wear down and rings actually become thinner and may even wear through. Platinum slows the process, and platinum rings still wear thin over decades.
Resizing also plays a part. Each time a ring is sized up by stretching, the band gets thinner. Each time it is cut and soldered, the seam adds a joint. A ring that has been resized several times usually has a thin bottom and several seams.
Signs your shank needs attention
Hold the ring and look at the bottom of the band from the side. Compare its thickness with the shoulders up near the stones. If the bottom is clearly thinner, the shank is wearing. Other signs we look for:
- The ring no longer holds a round shape and squeezes into an oval when you press it gently between finger and thumb.
- A flat spot has worn into the bottom of the band.
- A fine dark line has appeared across the band, which is often a crack starting at an old solder seam.
- The ring feels loose even though your finger size has not changed, because a thinner band sits differently.
- The prongs at the top are also worn, which tells you the whole ring has had heavy wear.
A band that bends out of round puts stress on the setting above it, and that is how stones work loose. If you see any of these signs, bring it in before you wear it on a trip. Our post on five signs jewellery needs professional repair covers the other warnings worth knowing.
Half shank or full shank
A half shank replaces the bottom half of the band, from shoulder to shoulder, and leaves the top of the ring, with its setting and stones, untouched. It is the most common version of the repair because the bottom is where the wear is. The goldsmith cuts out the thin section, fits a new piece of metal of the right width and thickness, solders both joins, and then files and polishes until you cannot see where old meets new.
A full shank replaces the whole band up to the setting. It makes sense when the shoulders are worn as well, when the band has been cracked and patched in several places, or when you want to change the band's style, for example from a thin round wire to a flatter, more comfortable profile. Our guide to comfort fit and standard fit bands explains the profile options if you are changing the feel of the ring at the same time.
There is a third option for rings where the setting itself is worn: a new mount. The stones come out and go into a new ring, and the old metal can be credited or reused. If the prongs are thin and the shank is thin, rebuilding both can cost close to a new mount, and the new mount gives you a ring with no old joints at all. We will tell you when we think that is the better route.
Matching the metal, and keeping the stamp honest
New metal should match the old in karat and colour. Most rings carry a quality mark inside the band, such as 14K or 585. In Canada, marking is optional, and the Competition Bureau's guide to the Precious Metals Marking Act states that marking a precious metal article for quality is optional, and that any quality statement that is made must be truthful.
The same guide sets the tolerances a marked gold article must meet. For gold between 9 and 24 karat, the allowed shortfall is 3 parts per 1,000 where no solder is used and 7 parts per 1,000 where solder is used, so the rules already account for solder joints like the ones a shank repair adds. The guide also says that a dual mark such as "14 K and 18 K" on one article is only permitted where the quality difference can be seen in the colour of the metal.
In practice that means two things. A 14K ring gets a 14K shank, and an 18K ring gets 18K, so the existing stamp stays accurate. And if the stamp sat on the worn section that was cut away, ask for the mark to be reapplied on the new metal so the ring stays identifiable for insurance and resale.
Colour is the other half of the match. Yellow and rose golds vary between alloys, and a new piece that is a shade off will show after polishing. White gold is easier, because nearly all white gold is plated with rhodium, and the whole ring gets replated after the repair. Our post on why white gold turns yellow explains that plating.
What to ask before you approve the job
Ask whether it will be a half shank or a full shank, and why. Ask what karat and colour the new metal will be. Ask whether any stones near the joins will be removed for the soldering, since heat-sensitive stones such as emerald, opal and pearl usually come out first. Ask whether the ring will be resized at the same time, which is the cheapest moment to do it. And ask for the finished thickness, so you know how many years of wear the new metal gives you.
The price depends on the metal, the karat, the width of the band and whether stones have to come out, so we quote each ring after looking at it at the counter. A plain half shank in yellow gold sits at the lower end. A full shank in platinum, or a shank on a ring with stones set down the shoulders, sits higher. Our repair guide explains how we quote bench work in general.
How to slow the wear on the new shank
Take the ring off for the gym, for gardening and for anything that grips metal: dumbbells, shopping cart handles, rope. Have it checked once a year, which takes a few minutes at the counter. And if you are ordering a new ring that you plan to wear for the next thirty years, ask for a thicker band at the bottom from the start. The extra metal costs little up front and buys years before this repair comes around again. Our ring anatomy guide names every part of a ring if you want the vocabulary for that conversation.
Wedding rings in the shop
If the repair quote comes close to the cost of a new ring, these are some of the wedding rings in our cases now, all with solid bands built for daily wear.
Key Takeaways
- The shank is the band of a ring. Daily wear removes gold from the bottom of it over years, and resizing by stretching thins it further.
- Signs of a worn shank: a thin or flat bottom, a band that squeezes out of round, or a fine dark line at an old solder seam.
- A half shank replaces the bottom half of the band and leaves the setting alone. A full shank replaces the whole band. A new mount makes sense when the prongs are worn too.
- Match the karat and colour of the new metal. Canadian marking rules allow for solder joints, and any quality stamp on the ring must stay true.
- Ask for a thicker band at the bottom when you order a new ring. It delays this repair by years.
Frequently Asked Questions
What is a ring shank?
The shank is the band of the ring, the part that circles the finger, as distinct from the head or setting that holds the stones. On a solitaire, the shank runs from one side of the setting, around the back of the finger, to the other side. Jewellers describe shanks by shape: a plain round or flat band, a knife edge that rises to a ridge, a split shank that divides into two strands near the top, a tapered shank that narrows toward the stone, and so on. The shape affects comfort and how the ring wears. Thin and knife-edge shanks look delicate and wear through sooner, because there is less metal to lose. Wider, flatter shanks last longer. Our ring anatomy guide shows each part of a ring and the common shank styles with photos, which helps when you are describing a repair or a custom design to a goldsmith.
How do I know if my ring band is too thin?
Look at the bottom of the band from the side and compare it with the shoulders near the stones. If the bottom is clearly thinner, it has worn. Then press the ring gently between finger and thumb. A healthy band holds its round shape. A thin one gives and squeezes toward an oval, and that flexing passes stress up to the setting, which is how stones work loose. Also check for a flat spot on the bottom and for a fine dark line across the band, which is often a crack starting at an old solder seam. Any of these is a reason to have the ring looked at. The check takes a few minutes at our counter. It is better to catch it while the band is thin than after it has cracked, because a cracked shank can open while you wear it.
What is the difference between a half shank and a full shank?
A half shank replaces the lower half of the band, from one side of the finger to the other across the palm side, and leaves the upper part of the ring and the setting untouched. It is the usual repair, because daily wear takes metal from the bottom of the band more than anywhere else. A full shank replaces the whole band up to the setting. It is the right choice when the shoulders are worn too, when the band has been cracked and repaired in several places, or when you want to change the band's style at the same time, for example from a thin round band to a flatter, more comfortable profile. A full shank costs more because there is more metal and more fitting work. We look at the ring and tell you which one it needs before quoting, and why.
Will the repair be visible?
On a well-done repair in matching metal, no. The goldsmith solders the new section in, then files and polishes the joins until the band is smooth and even. With white gold, the whole ring is replated with rhodium afterwards, which gives one uniform colour across old and new metal. Yellow and rose gold are harder to hide, because alloys from different makers can differ in shade, and a new piece that is warmer or cooler than the original can show in bright light after polishing. A careful goldsmith matches the alloy before cutting. If you look at a repaired ring under a loupe, you may find the faint line of a solder seam, which is normal on any ring that has been sized or repaired. Ask to see a sample of the new metal next to your ring before the work starts if colour is a concern.
Does a new shank change the 14K stamp in my ring?
It should not, as long as the new metal matches the old. A 14K ring needs a 14K shank so that the existing quality mark stays true. In Canada, the Competition Bureau's guide to the Precious Metals Marking Act says marking is optional, but any mark that is applied must be accurate. The guide's tolerances for gold already allow for soldered articles, at 7 parts per 1,000 where solder is used, so the solder joints of a normal repair are accounted for. Two cases need attention. If the stamp was on the worn section that was cut away, ask for the mark to be reapplied on the new metal. And if someone offers to use a lower karat to save money, the old stamp would no longer describe the ring correctly. The guide only permits a dual mark on an article where the karat difference can be seen in the colour.
How much does a ring shank replacement cost?
The price depends on four things: the metal, the karat, how much of the band is replaced, and whether any stones must come out for the soldering. Gold costs follow the market price of gold, so the same repair costs more when gold is high. A half shank on a plain yellow gold band is at the lower end of the range. A full shank, a platinum ring, a wide band or a ring with stones set down the shoulders all add metal or labour. Rhodium replating adds a line to the bill for white gold. Because of all these variables, we quote each ring after looking at it rather than giving a list price. If the shank and the prongs both need rebuilding, we will also tell you what a new mount would cost, since that can be the better value.
Can a ring be resized and get a new shank at the same time?
Yes, and it is the best time to do it. A resize already involves cutting the band and adding or removing metal, so when the shank is being replaced, the goldsmith simply makes the new section the right length for your current size. You pay for one job and get both results. This is also the way to fix a ring that has been stretched up several sizes over the years and thinned in the process, because the new section is made at full thickness instead of stretched thinner. If your finger size has changed since the ring was made, have it measured on the day you drop the ring off, at a normal temperature, since fingers swell in heat and shrink in cold. Our guide on ring sizing and swollen fingers explains why the time of day matters.
When is a new mount better than repairing the old ring?
When the wear is everywhere. If the shank is thin and the prongs are also worn short, rebuilding both means a new shank, retipping or replacing several prongs, and polishing the whole piece. That adds up, and the result still has old metal and several joints in it. A new mount means moving the stones into a new ring of the same or a different design. The cost can be close to a full repair, and you end up with a ring that has no worn metal at all. The old gold can often be credited toward the new piece or melted and reused. Sentiment also matters: some people want the original band kept no matter what, and that is a fair choice. We lay out both options with prices when we quote. Our post on resetting a family heirloom covers how to weigh it.
Sources
- Ganoksin (copyright Platinum Guild International): Platinum Durability vs Scratching, updated June 1, 2017
- Competition Bureau Canada: Guide to the Precious Metals Marking Act and Regulations
Data sourced October 2026. Metal wear behaviour from Platinum Guild International material published on Ganoksin. Quality marking and tolerance rules from the Competition Bureau Canada guide. Repair methods, warning signs and pricing factors are our own practice at our Coquitlam bench.
Visit Vanhess
Bring the ring in and we will check the band with you at the counter. It takes a few minutes. We are a family-run studio at 2929 Barnet Highway, Unit 2424, in Coquitlam Centre, and the goldsmith who quotes your repair is the one who does the work on site. We also serve Port Moody, Burnaby, New Westminster and Vancouver. Call +1 (604) 653-6449 or see our repair service page before you come in.
