Size Guide
A quiet guide to finding your fit
GEMSA pieces are designed to sit comfortably and beautifully on the body. This guide is here to help you choose with confidence, without overthinking.
Rings
Finding Your Ring Size

Rings are most comfortable when they fit securely without feeling tight.
If you already own a ring you love the fit of, this is the easiest place to begin.
Option A - Existing Ring
• Place a ring that fits you comfortably on a ruler
• Measure the inside diameter (mm)
• Match it to the chart below
If you are between sizes, we recommend choosing the larger size.
Option B - Measuring your finger
1. Wrap a strip of paper or string around your finger
2. Mark where it meets
3. Measure the length in millimetres
4. Refer to the size chart below
Measure at room temperature, when your hands are relaxed.
Ring Size Chart
|
Inches |
MM |
UK |
US |
EUROPE |
GENERAL |
|
0.60 |
15.4 |
J |
5 |
49 |
Extra Small |
|
0.64 |
16.4 |
L |
6 |
51 |
Small |
|
0.67 |
17.2 |
N |
7 |
54 |
Medium |
|
0.71 |
18 |
P |
8 |
56 |
Large |
|
0.75 |
19.2 |
R |
9.5 |
60 |
Extra Large |
Necklaces
Necklace length changes how a piece sits, moves, and feels throughout the day.
Our necklaces are designed to layer softly or stand alone, depending on how you wear them.
• Short (12–16”)
• Mid (17–18”)
• Long (19–24”)
Still Have Questions?
Jewellery is personal. If you are unsure, or choosing a piece as a gift, we are always happy to help you decide.
Please email us at contact@gemsa.co.uk and we aim to respond within 24 hours on business days.