reference · Care, Sizing & Fit
How to size a ring at home — and when a ring cannot be resized
Liori charges 15% to restock a sized ring — $372 at its own catalogue median by our arithmetic, and the only figure any covered brand publishes for getting a ring size wrong.
Imogen HartJewelry & Materials Desk
Published Sep 5, 2026 · 6 min read
15%. That is what Liori Diamonds charges to restock a sized ring — and against its own sampled catalogue median of $2,480, our arithmetic puts that at $372 to undo a sizing decision. It is the only number any of the fifteen brands in our files publishes for getting a ring size wrong, and it is worth more attention than the guesswork that produces it.
Sizing is the one part of a fine-jewelry purchase you are expected to do yourself, at home, on a body that changes size through the day, for an object that may not be adjustable afterwards. Everything below comes from the brands' own sizing, care and policy pages as recorded in our brand files on 4–5 September 2026.
Measure the finger, not the ring
Two different measurements get confused. Sizing a finger means measuring the finger you will wear the ring on. Sizing a ring means measuring the inside of a band you already own — useful only if that band sits where the new one will and is the same width.
Four practices do most of the work. Measure at the end of the day, when fingers are largest. Measure the specific finger on the specific hand, because the two hands differ. Measure more than once, and take the larger result if a knuckle is involved. And use a rigid sizer rather than string or paper, which stretch.
Fiametta's own advice is the most honest of the fifteen: it recommends taking the measurement to a local jeweller rather than trusting a home reading. Our FAQ on sizing a ring at home covers the same ground in brief.
What the brands hand you
| Brand | What they give you | What a wrong size costs |
|---|---|---|
| AMANDA PEARL | A printable size guide, a sizing app, a purchasable ring sizer, how-to videos, and in-person sizing at the New York showroom by appointment | Some pieces can be enlarged or reduced on request — not all; repairs take 4–6 weeks and are chargeable unless the fault is a manufacturing defect |
| Noémie | A free physical ring sizer on request, and a complimentary resize if a custom piece is sized wrong | 30-day returns with free shipping and no restocking fee — but the lifetime warranty is void if the piece is taken to an outside jeweller |
| Fiametta | Ring sizers, a bracelet size guide, and a recommendation to use a local jeweller | Special-order sizes are final sale; wear-and-tear repairs take 4–6 weeks |
| Liori Diamonds | Home try-on on 487 styles, and a request to speak to a representative before ordering a custom size | A 15% restocking fee on sized rings |
| BEN | A necklace-length guide with a measure-your-neck method and a rule to go at least two inches above neck circumference | No ring sizing guidance is published |
Liori's home try-on is the strongest answer here, because it removes the measurement problem rather than documenting it. Noémie's free sizer and complimentary resize come next, with one string that is easy to miss: your own jeweller voids the lifetime warranty.
What a sizing mistake costs
Nobody publishes a bench price. Not one of the fifteen brands in our files states what a resize costs at a jeweller, which is why our cost-per-wear method treats alteration as a figure you type into the price box rather than a field the tool can preload.
What is published are the penalties. Liori's 15% on a sized ring is $372 at the catalogue median by our arithmetic — more than the $475 entry price of its own cheapest listing. Fiametta makes special-order sizes final sale outright, on a house where made-to-order runs six to eight weeks and the return window is seven days from receipt, so an ordering error there costs the whole price. AMANDA PEARL's repairs run four to six weeks and are chargeable unless the piece was faulty.
The cheapest correction is the return, which is a clock question rather than a bench one. The full board of return terms is where to check it before you order.
When a ring cannot be resized
Resizing tolerance is the phrase for how far a design can move. A plain band moves furthest, because there is a stretch of unset metal to cut and re-join. The further a design covers the shank, the less there is to work with — and a band set with stones the whole way round leaves nothing at all.
That is not a hypothetical on this board. Noémie's self-described best-seller is the Diamond Eternity Band Ring at $1,130–$1,490, and an eternity band is by construction the hardest case in the category. Pavé shanks, engraved shanks and heavy bezel designs sit on the same spectrum.
Read the qualifiers the brands themselves use. Fiametta says many items can be resized. AMANDA PEARL says some pieces can be enlarged or reduced on request. Neither says all, and neither publishes which. Ask about the specific ring, in writing, before the order rather than after.
One case we cannot demonstrate: a tension setting, where the stone is held by the spring of the metal itself, is the classic ring that cannot be adjusted without remaking it. No brand in our files sells or describes a tension setting, so we hold no sourced example and make no claim about a specific one.
Treated stones and the torch
The other reason a ring will not go to the bench is the stone. A treated stone — clarity-enhanced or fracture-filled, irradiated, laser-drilled, HPHT or colour-enhanced — may not survive routine repair heat.
Liori's assortment includes all of those, and the retailer publishes an explainer page on clarity enhancement, which is more than most do. But that page states damage risk only from open heat above 1500C, strong acid, strong alkali or re-cutting. It understates the practical hazard, which is that an ordinary jeweller's torch during a resize or a prong repair can damage a fracture-filled stone.
Softer stones fail differently. AMANDA PEARL's care guidance flags stones at 5 or below on the Mohs scale and notes that opals contain 5–6% water and can crack in dry conditions — and worn opals are final sale.
How to use this
Measure late in the day, on the correct hand, more than once, with a rigid sizer — then have the reading confirmed by a jeweller before you commit to a made-to-order or special-order size.
Before you order, ask two questions in writing: can this specific ring be resized, and by how much; and is the stone treated in any way. Get both answers before any bench work, not before a complaint.
Then check the clock. Screenshot the returns page the day you order, count the window from delivery rather than dispatch, and remember that a six-to-eight-week make can be followed by a seven-day window. What the grades and stone labels mean is the companion piece.
Sizing tools, resizing language, repair times, fees and care guidance are drawn from each brand's own pages as recorded in our brand files on 4–5 September 2026. Terms change without notice. The Pennyweight buys nothing, accepts no gifted product, and is not affiliated with any brand named here.