Customer Care

Size Guide

Need sizing help? With a range of spinning, bold, delicate and dainty rings to choose from, you may not only be stuck for choice, but also on your ring size. When it comes to choosing your ring size, the key is to find a size that fits your finger perfectly.

So what is the perfect fit? Ideally, it should go over your knuckle with some friction when it's being put on and taken off. Follow our sizing guide below, and purchase our NAJO Ring Sizer, with its belt style design, simply slip the end through the buckle to form a ring and the letter facing the arrow will be your perfect ring size.

Please refer to the table below for ring size comparisons. Many rings can also be resized.

Najo Size USA British Inside Circumference Inside Diameter
  3 E 1/2 43.5 mm 13.8 mm
  4 H 1/2 46.5 mm 15.0 mm
  5 J 1/2 49.0 mm 15.75 mm
X Small 6 L1/2 52.0 mm 16.5 mm
Small 7 N 1/2 55.0 mm 17.5 mm
Medium 8 P 1/2 57.0 mm 18.0 mm
Large 9 R 1/2 60.0 mm 19.0 mm
X Large 10 T 1/2 62.0 mm 22.0 mm

The different types of necklaces and their lengths

Our NAJO Necklace Length Guide describes the different types of necklaces, their typical lengths, and where each sits on your body:

Collar Necklace
30-33 cm Sits tightly around the centre of the neck.
Choker Necklace
35-41cm Sits closely around the base of the neck.
Princess Necklace
45-20cm Sits on the collarbone.
Matinee Necklace
56-58cm Sits between the collarbone and bust.
Opera Necklace
75-90cm Sits just below the bustline.
Rope Necklace
90cm and more Sits well below your bustline to the waist or longer.
NAJO Guides

How To Ring Size

For more jewellery care tips, visit our NAJO Guides | How to Ring Size post.