Halo Size Guide

How to find the correct size

Use the dropdown menus below to help find your circumference or diameter measurement. Next, use the chart to see which ring size corresponds with your measurement to find your perfect size.

Find your diameter

Diameter is the measurement across the inner width of the ring

You'll need: A ring that fits you and a ruler

Step 1

Find a ring that fits the finger you've selected 

Step 2

Lay the ring on top of your ruler and measure the widest distance inside your ring between the inner edges. Round to the nearest whole millimetre.

Find your circumference

Circumference is the measurement around the base of the finger

You'll need: 5mm wide strip of paper, a pencil or fine tip pen and a ruler

Step 1

Cut a long strip of paper that is 5 mm wide.

Step 2

Wrap the strip of paper around the base of your desired finger. For the most accurate result, pull the paper as tight as possible.

Step 3

Make sure the paper is evenly overlapped and pulled tight, and mark where the strip of paper ends.

Step 4

Measure the length of the strip of paper in millimetres. Round to the nearest whole millimetre.

Size tips

Select a finger in which it's comfortable to quickly activate Duress Halo

Find your size