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How to Find Your Perfect Ring Size

At Ura Atelier (based in Spain), we use theSpanish ring sizing system, measured by the inner diameter and circumference of the ring. Refer to our size conversion chart to match your measurement (down bellow).

For the Most Accurate Fit:

Visit a local jeweler: Professional sizing is highly recommended, as DIY methods (string/paper) often lead to inaccuracies.

Consider the ring’s design: Wider or textured bands may require sizing up by one or two sizes—a knowledgeable jewelry store assistant can guide you through this process. If you still are unsure, please contact me. 

Half/full sizes? We offer them at no extra cost. Select the nearest standard size at checkout and note your exact preference in "Order Notes."

Key Tips:

Timing matters: Measure your finger at the end of the day, at rest, and in a temperate climate (heat/swelling can alter size).

Hand dominance: Your dominant hand’s fingers are slightly larger— so keep this in mind when choosing where will you place your ring. 

Seasonal changes: Some bodies change more than others during the seasons, so if this is your case, you might want to consider having seasonal rings according to your body. 

Band width: Thicker bands fit tighter; size up if choosing a thicker design.

Custom Sizes:

Need a size outside our standard range? Contact us for a custom order (nominal fee applies).

** Thicker Ring

In this case, you will need to size up due to the thickness of the ring to allow for a comfortable movement of your finger.

What matters is the thickness all the way around. If your ring is only big on the front, it will not affect the sizing result.

Big ring but thin band

This is an example of how a ring only big on the front won't affect your sizing.

Anillo Eldra por detras sobre corteza y fondo de musgo
Spain UK/AUS US/CAN France Italy Germany Switzerland Japan Diameter (mm) Circumference (mm)
5E ½4.7545.55.515 ¾5.5714.6846.1
6F ½5.7546.56.516 ¼6.5815.1047.4
7G ½6.7547.57.516 ¾7.5915.5148.7
8H ½7.7548.58.517 ¼8.51015.9250.0
9I ½8.7549.59.517 ¾9.51116.3351.3
10J ½9.7550.510.518 ¼10.51216.7452.6
11K ½10.7551.511.518 ¾11.51317.1553.9
12L ½11.7552.512.519 ¼12.51417.5655.2
13M ½12.7553.513.519 ¾13.51517.9756.4
14N ½13.7554.514.520 ¼14.51618.3857.7
15O ½14.7555.515.520 ¾15.51718.7959.0
16P ½15.7556.516.521 ¼16.51819.2060.3
17Q ½16.7557.517.521 ¾17.51919.6161.6
18R ½17.7558.518.522 ¼18.52020.0262.9
19S ½18.7559.519.522 ¾19.52120.4364.2
20T ½19.7560.520.523 ¼20.52220.8465.5

Use coupon code WELCOME10 for 10% off your first order.

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