Find your perfect fit

Measuring tape image for jewellery size guide

When it comes to jewellery, comfort is key.

We want yours to fit like a dream.

Use our size guides to find your ring sizes & ideal necklace lengths.


Ring Size Guide

To find your perfect ring size in our non-adjustable rings, use our easy guide to convert your usual ring size to a Constellations size Small (S), Medium (M), or Large (L) using either your equivalent UK or US ring size if you know it, or by measuring the finger circumference of the finger you'd like to wear the ring on.


Constellations London Jewellery Ring Size Guide - How to find your perfect ring size 


Necklace Length Guide

Our chain necklaces and pendant necklaces range between the lengths of 33cm to 50cm. Most of our necklaces also have an extender chain with three extra fasten options, allowing you to add up to 5cm to the length of the chain. Having this range of length allows you to create the perfect graduated necklace stack for necklace layering, or wear your necklace solo at the perfect length for your look.

You can find the necklace chain length in the Details & Dimensions section of each product page. Click here to browse Necklaces. 


Still can’t find your perfect fit?

Speak to a member of customer care team.