Sizing Guides
Find your fit — for rings, chains, and necklaces. Everything you need to size a piece with confidence, from at-home measuring methods to full conversion charts.
Ring Size Guide
Ring sizing is measured by the inner diameter or inner circumference of the band, in millimetres. Below are two reliable methods you can use at home, followed by a full size conversion chart. For the most accurate result, take each measurement two or three times and use the size that comes up most often.
Method 1 — Measure a Ring You Own
- Choose a ring that already fits the finger you are sizing for comfortably, and that has a fairly round band.
- Place the ring flat on a ruler or against a millimetre scale.
- Measure the inner diameter — the distance straight across the inside of the band, in millimetres.
- Match this measurement to the diameter column in the chart below.
Method 2 — String or Paper Strip
- Cut a thin strip of paper, or take a length of non-stretch string or floss.
- Wrap it snugly around the base of the finger — snug enough that it doesn't slide over the knuckle, but not so tight it pinches.
- Mark the point where the strip meets itself, then lay it flat against a ruler.
- Measure the length in millimetres — this is the circumference — and match it to the chart below.
- Measure at the end of the day, when fingers are at their largest.
- Avoid measuring when cold — fingers shrink slightly in cold weather.
- Wider band styles fit more snugly; for bands over 6mm wide, consider sizing up half a size.
- If you fall between two sizes, choose the larger size for comfort.
Size Conversion Chart
Match your measurement from either method to find your size.
| US | UK / AU / NZ | Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| 3 | F | 14.1 | 44.2 |
| 3½ | G | 14.5 | 45.5 |
| 4 | H½ | 14.9 | 46.8 |
| 4½ | I½ | 15.3 | 48.0 |
| 5 | J½ | 15.7 | 49.3 |
| 5½ | K½ | 16.1 | 50.6 |
| 6 | L½ | 16.5 | 51.9 |
| 6½ | M½ | 16.9 | 53.1 |
| 7 | N½ | 17.3 | 54.4 |
| 7½ | O½ | 17.7 | 55.7 |
| 8 | P½ | 18.1 | 57.0 |
| 8½ | Q½ | 18.5 | 58.3 |
| 9 | R½ | 18.9 | 59.5 |
| 9½ | S½ | 19.4 | 60.8 |
| 10 | T½ | 19.8 | 62.1 |
| 10½ | U½ | 20.2 | 63.4 |
| 11 | V½ | 20.6 | 64.6 |
| 11½ | W½ | 21.0 | 65.9 |
| 12 | X½ | 21.4 | 67.2 |
| 12½ | Y½ | 21.8 | 68.5 |
| 13 | Z | 22.2 | 69.7 |
Measurements are approximate guides and may vary slightly between manufacturers. Wider bands and stacked or eternity styles can feel tighter than a thin band of the same size — for these, sizing up half a size is often more comfortable.
Chain Thickness Guide
Chain thickness is measured across the link or wire, in millimetres. It's a small number that makes a big difference, a fraction of a millimetre changes how a chain catches the light, how it layers, and how it feels to wear. The dot beside each size below is drawn to true scale, and each one is matched to a piece from the world of fine craft for an easy reference.
Tip: for the dots to reflect true size on screen or paper, view or print this page at 100% scale.
Box Chain — finest gauge
Our most delicate option, used for the lightest box-style chains. Sits close to the body and layers easily under other pieces.
Dainty Chain — classic gauge
The everyday starting point for fine cable-link chains, light, low-profile, and easy to wear daily.
Thin Curb Chain — light gauge
A versatile, easy-to-layer thickness with a bit more presence than a dainty chain, while still sitting flat and comfortable.
Singapore Chain — mid gauge
Noticeably present without feeling heavy, a good mid-point for a chain worn on its own.
Hollow Rolo Chain — light gauge
A fuller, rounder link that reads as more substantial while staying light to wear thanks to its hollow construction.
Figaro Chain — classic gauge
A confident, structured link with real visual weight, a true statement chain on its own.
Rope Chain — statement gauge
A bold, richly textured chain designed to be worn solo as a centrepiece, not layered.
Hollow Rolo Chain — XL gauge
Our heaviest chain gauge, a striking, oversized link for maximum presence, kept wearable by its hollow build.
All comparisons are approximate and intended as a general guide, everyday objects vary slightly in size. Heavier gauges generally wear more slowly and hold their shape longer; finer gauges sit lighter and layer more easily.
Necklace Length Guide
Necklace length is measured as the full closed loop, clasp to clasp, in centimetres. Where it actually falls depends on your neck and frame, but the diagram below shows a general guide on an average adult frame.
Length, fit, and how to layer
| CM | Inches | Name | Sits At |
|---|---|---|---|
| 40 cm | 15.7″ | Choker | Sits snugly at the base of the neck |
| 45 cm | 17.7″ | Princess | Sits just below the collarbone |
| 50 cm | 19.7″ | Princess – Matinee | Sits at the collarbone, grazing the top of the chest |
| 60 cm | 23.6″ | Matinee | Falls mid-chest, between the collarbone and the bust |
| 70 cm | 27.6″ | Opera | Falls below the bust |
Layering rule of thumb
Leave at least 5cm between each length in a layered set so the chains catch the light individually instead of tangling. Our 40 / 45 / 50 / 60 / 70cm range is built around exactly that spacing, 40 + 45 + 50cm makes an easy close-to-neck trio, while 45 + 60 + 70cm builds a longer, more dramatic cascade.
Drop position varies with neck size, posture, and how the chain sits on the day, treat this as a general guide rather than an exact measurement. Length names (Choker, Princess, Matinee, Opera) follow common jewellery industry usage and can vary slightly between sources.