top of page

RING SIZE GUIDE

Each Thésaurí Temporum piece is more than just a design.
It is a legend cast in metal.

International Size Chart

sizer_web_green.jpg

A Few Thoughts on Ring Sizing

2dows-top-banner.jpg
topaz-page-04_edited.jpg

01

Fingers change throughout the day

A ring that fits snugly in the morning may feel looser by evening. It is simply the way of things.

02

Cold contracts, warmth expands

A millimetre here or there is nothing to fret over. In the US system, half a size is barely perceptible.

03
The hands are not quite the same


The fingers of your writing hand tend to be slightly broader. If uncertain, measure both.

04

A wider ring sits differently

A substantial piece may call for half a size up. A narrow band glides more freely; a broader one will rest more closely.

05

Measure in a moment of stillness

After a long walk, a spell of warmth, or a vigorous morning, the hands may swell. The best time is midday, in a state of quiet equilibrium.

06
Sizing is not a matter of strict precision, but of comfort

Some prefer a firmer fit, others one more yielding. A ring should not be confined—it should simply belong.

topaz-page-01.jpg

How to Measure Your Ring Size?

There is no mystery to it — only a few practical methods, each effective in its own way.
Screenshot 2025-03-05 at 13.17.43.png

1. If You Have Our Ring Sizer

Slip it on as you would a well-fitted belt. Your finger should feel at ease—neither constrained nor adrift. A ring must pass over the knuckle with a gentle resistance, never too eager to slip away. The number on the scale corresponds to your size in the American system, which we favour for its accuracy and practicality.

How to obtain a ring sizer?

How to use our ring sizer

2. If You Have a Ring

Your rings may be measured with an app. There are various options, I have looked into several, and one that seems to work well is the Ring Sizer Tool (for iOS). It can determine size by finger as well, though, in my experience, not always with absolute accuracy.​​

Jewelry Appraisal

3. If You Have Neither a Ring Nor a Sizer

Visit your local jewellery store that specialises in silver and gold. They will have the right tools to measure your size precisely. There is no need to buy anything; a kind word, a polite thank you — no more is needed. And be sure to write down your sizes.

4. Measuring At Home Without a Ring

If you have no ring at hand but need to determine your size, there is another way.

How to do it correctly:

  • Take a thin strip of paper or a non-stretchable thread.

  • Wrap it around your finger where the ring would sit.

  • A small detail: try sliding it gently over your knuckle; this will help avoid mistakes.

  • Mark the point where the strip overlaps.

  • Lay it flat and measure its length with a ruler.

  • Compare the result with a ring size chart.

 A Few Common Mistakes:

  • A fit that is too tight: the ring should pass over the knuckle with ease.

  • Using elastic materials, which may stretch.

  • Measuring only at the finger's base without ensuring it passes over the knuckle.

Thesauri Web images_edited.jpg
For greater accuracy, you can also download and print our PDF ring sizer.
It includes a paper measuring strip, allowing you to determine your size with less effort.
Screenshot 2025-03-05 at 13.17.43.png

How to Obtain Our Ring Sizer?

1. Every order includes a ring sizer

With your chosen piece, you receive not only a legend cast in metal but also a ring sizer.

2. If you are on the Waiting List,

You may order a gift card of any amount, and we will send it with a ring sizer. When the time comes, you will already know your size and can use the card towards your purchase.

 Sizing is no fixed equation; it is a question of ease.

The sizer is no rule, only a guide — one that allows you to choose with certainty, but never with haste.
irina-photo-small.png

If you have any further questions,

feel free to reach out. I’m always happy to assist.
Warmly, Irina Croft
bottom of page