Your Perfect Fit
Finding the right fit for your rings, bracelets, and necklaces should feel easy, not like a guessing game. Use our simple jewellery size guide to find the perfect fit for every JJ piece, so it feels just right, every time.
Ring Sizing Made Simple
Here’s the deal—ring sizing can be a little tricky. If your knuckle’s wider than the base of your finger (which is super common), the perfect size is usually somewhere in between. You want a ring that slides over your knuckle but still fits snug at the base. Our tip? Measure both, then go with the size that feels like the sweet spot.
| US Ring Size | Inner Diameter (mm) |
|---|---|
| 2 | 13.3 |
| 2.5 | 13.7 |
| 3 | 14.1 |
| 3.5 | 14.5 |
| 4 | 14.9 |
| 4.5 | 15.3 |
| 5 | 15.7 |
| 5.5 | 16.1 |
| 6 | 16.5 |
| 6.5 | 16.9 |
| 7 | 17.3 |
| 7.5 | 17.7 |
| 8 | 18.1 |
| 8.5 | 18.5 |
| 9 | 19.0 |
| 9.5 | 19.4 |
| 10 | 19.8 |
How to Measure
Let’s make sure your jewellery fits just right. A few quick tips before you start measuring:
+ Fingers swell in the heat and shrink in the cold—so aim for room temp when sizing.
+ Salty snacks and drinks can cause finger swelling, so measure before happy hour.
+ If you’re in-between, sizing up is your safest bet for a comfy, confident fit.
Perfect for the solo shopper doing it DIY-style.
Here’s what you’ll need:
+ A thin strip of paper (about 3" long works great)
+ A pen or marker
+ A ruler (millimeters are your BFF here)
How to measure:
+ Wrap the paper around the base of your finger where you want your ring to sit.
+ Make sure it’s snug (but not cutting off circulation — we’re not monsters).
+ Mark the spot where the ends meet.
+ Lay it flat and measure the length to the mark in millimeters.
+ Pop over to our size chart to find your match.
Voilà — ring sizing made easy.
Keeping the surprise alive? This one’s for you.
Grab a ring they already wear on the right finger — one that fits just right. Then:
+ Grab a ruler or measuring tape.
+ Measure the inner diameter (straight across the inside).
+ Use our size chart to match it to the perfect fit.
It’s a sneaky little sizing hack, and they’ll never see it coming.
Necklace Size Guide
Most of our necklaces come with built-in extenders, giving you a little extra room to layer your look. Unless otherwise noted, chain necklaces include a 2" extender and chokers feature a 3" extender for added flexibility. Pieces listed with fixed lengths are final and do not include extenders—so double-check the product details before adding to cart.
| Length (in) | Length (cm) | Length (mm) |
|---|---|---|
| 12” | 30.48 | 304.8 |
| 14” | 35.56 | 355.6 |
| 16” | 40.64 | 406.4 |
| 18” | 45.72 | 457.2 |
| 20” | 50.80 | 508.0 |
| 22” | 55.88 | 558.8 |
| 24” | 60.96 | 609.6 |
How to Measure
What you’ll need:
+ A long piece of string or ribbon
+ A ruler
Steps:
+ Cut your string to the length you think you want.
+ Try it on around your neck to test the drop and vibe.
+ Use a ruler to measure the length in inches or cm.
Heads up: Most of our chains come with extenders for a little wiggle room. But if you're eyeing a fixed-length piece, double check the product details before you click add to cart.
Bracelets + Bangles Size Guide
Finding your perfect bracelet fit is all about comfort. A little tip from us: measure your wrist and aadd 0.25" for a snug fit, or 0.5" for something looser and laid back. Try on different sizes until it feels just right—you want it comfy enough to wear all day, every day.
| Length (in) | Length (cm) | Length (mm) |
|---|---|---|
| 5 | 12.70 | 127 |
| 5.5 | 13.97 | 140 |
| 6 | 15.24 | 152 |
| 6.5 | 16.51 | 165 |
| 7 | 17.78 | 178 |
| 7.5 | 19.05 | 191 |
| 8 | 20.32 | 203 |
How to Measure
What you’ll need:
A soft measuring tape + a pen or marker. That’s it.
Step-by-step:
+ Wrap the tape snugly around the widest part of your wrist (no squeezing, but no sagging either).
+ Mark the spot where the tape overlaps.
+ Note that number in inches or centimeters.
Then adjust your measurement based on how you like to wear your bracelets:
+ Want it snug? Add ¼" to ½"
+ Prefer a bit of breathing room? Add ¾" to 1"
+ Love a looser fit? Add 1" to 1¼"
Once you've got your final number, use our chart to find your match. Easy.
IMPORTANT TO KNOW:
Jessica Jewellery will fulfill orders based on the size that the client provides. Jessica Jewellery is not responsible for sizing errors made by the client. For questions on sizing, please contact us before placing your order.