Check the measurements on the individual product page before ordering. A size name from another brand may fit differently. If you are unsure, email contact@greign.com with the product link and your measurements in millimetres. One centimetre equals 10 millimetres; one inch equals 25.4 millimetres.
Rings
A professional ring fitting is the most reliable option, particularly for a wide band or a valuable piece. Ask for the finger and hand you intend to wear it on; your hands may be different sizes.
To check an existing ring that fits comfortably, place it flat and measure straight across the centre of its inside opening. Measure the clear space from inner edge to inner edge, excluding the metal or stone. Compare that inside diameter with the product’s stated size.
If you do not have a ring to measure, wrap a narrow strip of non-stretch paper around the base of your finger. Mark the overlap, lay it flat and measure the length in millimetres. It should be snug without pressing into the skin and must also pass comfortably over the knuckle. Repeat the measurement. Paper gives an estimate; confirm a close or uncertain fit with a ring sizer.
Approximate ring size reference
| US ring size | Inside diameter in mm | Inside circumference in mm |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 5 | 15.7 | 49.3 |
| 6 | 16.5 | 51.8 |
| 7 | 17.3 | 54.4 |
| 8 | 18.1 | 56.9 |
| 9 | 18.9 | 59.5 |
| 10 | 19.8 | 62.1 |
| 11 | 20.6 | 64.6 |
| 12 | 21.4 | 67.2 |
Conversions are rounded and vary slightly between sizing systems. Use this table only as a reference when a listing uses US sizes. The product’s actual dimensions and a physical fitting take priority. Half sizes or other systems should be confirmed with us rather than guessed from a label.
Measure when your hands are at a normal temperature, and repeat at a different time of day if your fingers tend to swell. A wider band often feels tighter than a narrow band with the same stated size. Ask for help if you fall between measurements.
Solid jadeite rings cannot be resized like metal rings. Metal-set rings may also have resizing limits, depending on the design.
Rigid jadeite bangles
A rigid bangle must pass over the widest part of your hand and then sit comfortably on your wrist. Wrist circumference alone cannot tell you the correct bangle diameter.
If you have a round, rigid bangle that fits well, measure its clear inside diameter straight across the centre, from inner edge to inner edge. Exclude the bangle’s wall. Take a second measurement at a right angle and contact us if the readings differ. Compare with a similar shape and width; an oval or broad bangle may fit differently.
Round bangle diameter reference
| Inside diameter in mm | Approximate inside diameter in inches |
|---|---|
| 50 | 1.97 |
| 52 | 2.05 |
| 54 | 2.13 |
| 56 | 2.20 |
| 58 | 2.28 |
| 60 | 2.36 |
| 62 | 2.44 |
| 64 | 2.52 |
These are measurement conversions, not recommended sizes for particular wrists. For example, a 56 mm bangle has a 56 mm inside opening. It does not mean it suits a 56 mm palm width.
If you do not have a bangle that fits, bring your fingers together and gently fold your thumb towards your palm. Measure around the widest part of your compressed hand with a non-stretch tape without squeezing tightly. Send that circumference and the product link to us for guidance. We do not recommend converting a hand measurement directly into a bangle size without checking hand shape, flexibility and bangle shape. A physical fitting is preferable for your first rigid bangle.
For oval bangles, check both inside dimensions. For hinged bangles, check the usable opening and wearing dimensions. Do not use the round-bangle chart alone for either style.
Never force a bangle past your knuckles. Stop if it causes pain or marked pressure. Jadeite can break if dropped or struck, and a tight bangle can be difficult to remove.
Flexible bracelets
Measure around your wrist where you want the bracelet to sit, using a soft measuring tape without pulling it tight. For a fine flexible chain bracelet, adding approximately 1–2 cm can be a useful starting point for comfort, depending on whether you prefer a close or loose fit.
| Measured wrist circumference | Starting point for a fine chain bracelet |
|---|---|
| 14 cm | 15–16 cm length |
| 15 cm | 16–17 cm length |
| 16 cm | 17–18 cm length |
| 17 cm | 18–19 cm length |
| 18 cm | 19–20 cm length |
This allowance does not apply automatically to chunky beads, cuffs or rigid bangles. Bead size reduces usable inside space. For beaded or elastic pieces, use the listed recommended wrist range and avoid choosing a fit that keeps elastic under tension. An adjustable or “one size” bracelet still has a minimum and maximum fit range.
Necklaces and pendants
Lay a necklace you like flat and measure its wearable length, including the clasp. Alternatively, drape a soft tape around your neck to your preferred length. Do not pull the tape tight. Check any extender range and whether the stated length includes the clasp.
| Chain length in cm | Approximate length in inches |
|---|---|
| 40 | 15.7 |
| 45 | 17.7 |
| 50 | 19.7 |
| 55 | 21.7 |
| 60 | 23.6 |
| 70 | 27.6 |
Where a necklace falls depends on your neck size, body proportions and pendant. A photograph on a model is a styling guide, not a guaranteed fit. Compare the pendant’s listed height and width with a ruler, and check whether its dimensions include the bail or hanging loop.
Check the product description to see whether a chain or cord is included. Where you supply your own, confirm that the clasp and chain can pass through the pendant opening and that they are suitable for its weight.
If the fit is wrong
Contact us before removing tags, arranging alterations or wearing the item out. Eligible standard items can be considered under our Returns and Refunds Policy. Personalised or customer-requested resized pieces may have different conditions disclosed before purchase. Incorrect measurements supplied by GREIGN are assessed separately from a change of mind.