Ring Size Guide


Ring Size

Discover Your Perfect Fit
Find Your Ring Size with Ease and Elegance.

Ring Size Chart

All GemFly rings are specified in standard US sizes. View the conversion chart to
see how US sizes map to finger circumference, as well as how US
sizes convert to Europe, Australia, and other countries.

US Standard Size UK Standard Sizes Ring
Diameter in MM
4 47 14.90 mm
5 49 15.70 mm
6 52 16.50 mm
7 54 17.30 mm
8 57 18.10 mm
9 59 19.00 mm
10 62 19.80 mm
11 65 20.60 mm
12 68 21.40 mm

Measure your own finger

Step 1: Measure your finger by wrapping a strip of paper or wide thread around it, leaving enough space to slide the ring over your knuckle.

Step 2: Mark the place where the paper strip meets and measure the length by using a ruler. This is the circumference of your finger, which corresponds to European ring sizing. E.g. if it measures 5,4 cm you should choose a size 54. If you fall in between sizes, we recommend that you choose the larger size.

As a rule of thumb, you can always remember that you will probably need a slightly bigger size if the ring is wide versus slim. If the ring is sleek and slim we recommend that you opt for a slightly smaller size eg. 0,5 size difference.

This method can be used to find the ring size of any of your fingers.

Please note: That the ring size can vary depending on the ring design and fit on your finger.

Measure your own ring

Measure one of your own rings using a ruler. Lay the ring on a flat surface and place a ruler on top of the ring. Measure the ring (inside diameter) on the widest part of the ring. When it comes to selecting the perfect ring size, precision is key, as even a few millimeters can make a difference..

Things to consider

The fingers on your dominant hand tend to be larger than those on your non-dominant hand, so keep that in mind when measuring for your ring size.

Cold weather can cause your fingers to shrink a bit, while heat or water retention caused by food or medications, can cause finger swelling.

Ring Sizing Tips

Here are a couple of tips on choosing ring size based on the ring’s design/style.

Large statement/cocktail rings: Keep in mind that broad/thicker ring bands (larger than 6mm) will fit tighter. It is better to choose half a size up when purchasing a thicker band, for the ring to be comfortable.

Stacking rings: When you buy slim stackers ensure a comfortable fit by picking a snug-fitting ring size (measure the finger you choose to wear the ring on).

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If you need personal guidance

You Can Always Reach Out

Have no worries when you shop online for Rings at thegemfly.com. We guide and help customers all over the world on a daily basis, and our jewelry experts will do whatever it takes to find the perfect fit and size for the jewelry you're looking for.

And please remember if you are still in doubt, you can shop safely with us.

We guarantee that you can always

exchange your purchase within 30 days.

Love, GemFly