Size Guide

Because Foundry Collection pieces are one-of-a-kind, we recommend confirming sizing before ordering. If you’re unsure, contact us and we’ll help you choose the best fit

Ring sizing (recommended method)

Measure a ring that already fits

This is the most accurate method.

Step-by-step

  1. Choose a ring that fits the finger you’re buying for.
  2. Measure the inside diameter across the widest point (in mm).
  3. Match your measurement to your AU/UK ring size chart.
  4. If you’re between sizes, choose the larger size for comfort.

Tip: If the ring you’re measuring is slightly oval, measure the widest point.

Measuring your finger (backup method)

Paper strip method

If you don’t have a ring to measure:

Step-by-step

  1. Wrap a thin strip of paper (or non-stretch string) around the finger.
  2. Mark where the strip overlaps.
  3. Lay it flat and measure the length in mm (this is your circumference).
  4. Match the measurement to an AU/UK ring size chart.

Important: Don’t pull it tight. Rings should feel secure but not restrictive.

Fit tips

  • Wide bands feel tighter than thin bands. If you’re choosing a wider ring, consider sizing up slightly.
  • Measure your finger at the end of the day (fingers swell with heat and activity).
  • Avoid measuring when your hands are very cold (fingers shrink).
  • Your dominant hand is often slightly larger.
  • If the ring is a gift and you’re unsure, contact us before ordering.

Necklaces + earrings sizing

Product pages include measurements and/or drop length where relevant. If you’d like help visualising scale, send us:

  • your height (optional)
  • the style you’re considering and we’ll guide you.

Still unsure?

Email us at foundrycollection@gmail.com with:

  • the product name or link
  • your ring size (or your measurement in mm)
  • any notes about fit (snug vs comfortable)

We’ll reply within 2–3 business days

Frequently asked questions

How do I find my ring size at home?

Measure the inside diameter of a ring that already fits (mm), then match it to an AU/UK ring size chart. If between sizes, choose the larger size.

H3: Should I size up for wider rings?

Yes. Wider bands often feel tighter, so sizing up slightly can improve comfort.

Can you resize rings?

Because pieces are one-of-a-kind and hand-finished, resizing is not possible. Contact us with the product link and your size to confirm before purchasing.