A millimeter number on a ring-shopping note needs more than its unit. Was it measured across the inside of an existing ring, or along something wrapped around a finger? Tiffany's size guide describes these as different methods. Removing that description leaves the seller to guess what the number means. This guide keeps the methods separate; it does not select anyone's ring size or report a fitting.
| Original enquiry-note heading | Description to preserve |
|---|---|
| Existing ring | Interior diameter, millimeters, actual maker method |
| Intended finger | Wrap length, millimeters, actual maker method |
Name the object as well as the unit
Tiffany's existing-ring method asks for the interior diameter in millimeters of a ring that already fits. Its finger method instead describes wrapping flexible tape or string around the intended finger and measuring the resulting length. Those are the maker's published approaches, not measurements carried out for this article.
Both can produce a millimeter value, but across an interior and around a finger are different descriptions. A note that says only ring measurement has lost the distinction. Do not place an unexplained number into a chart column because its unit happens to match. First establish which measurement the seller is asking you to provide.
Keep two enquiry lines instead of one guessed size
For an original enquiry note, use one line headed existing ring: interior diameter, measured using the maker's method. Use another headed intended finger: wrap length, measured using the maker's method. Only fill in a line when that measurement has actually been made. These headings describe the information to retain; they do not invent a personal value or say that both methods must be used.
Keep the exact maker's chart and instructions with the note. If you change sellers, check the new seller's requested method rather than assume an unexplained size label transfers unchanged. This article supplies no numerical conversion, regional-size mapping, printed ring circles or allowance to add to a measurement.
Resolve the method before buying the surprise
An imagined gift buyer might have an existing ring available but no direct finger measurement. That situation is not permission to label one as the other. The useful seller question is whether its current instructions can use that exact existing-ring measurement for the particular design being considered. If the information is insufficient, leave the size unresolved instead of converting the desire for a surprise into a claim of certainty.
Before ordering, understand the actual design's sizing options and the applicable fitting, exchange or alteration process. No particular return right or resizing service has been researched here. A ring that looks appealing still needs a size enquiry whose meaning is clear. Spend on a purchase process you understand, rather than rely on a bare number separated from the object, direction and method that produced it.
Sources & further reading
Published sources for the details and examples discussed in this story.
