Ring Sizing Kit

Ring Sizing Kit

Ships free within USA!

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Ring Sizing (Don't know your size?)

We've got you covered!

Our no charge calibrated sizing kit (available US only) will help you learn your perfect size! Available with ring purchase only.

Orders outside USA see alternate method below.


Don't rely on DIY/at-home sizing methods. They are inaccurate.


Alternate method 

Get sized locally: Visit at least 2-3 jewelers to get sized- it should be free. Why 2-3? Because some jewelers use inaccurate sizing methods or uncalibrated ring sizers that give an incorrect size. Going to 2-3 jewelers (that give you the same size) will help ensure you get the correct ring size.

Important note if getting sized locally-when selecting your size, keep in mind that wide (9mm+) rings tend to fit more snugly. Consider increasing the size you order a little (1/4 to 1/2 size) if you're getting a wider (9mm+) ring. Feel free to contactme withany questions.

How wide should my ring be?

Most people choose between 6-8mm wide

3-4mm - Very narrow

This narrow is a more feminine look.


5mm - Slim

Rings in this width are less common for men's rings, though some prefer a narrower ring.


6mm - Classic width

6mm is a very traditional men's band width. If you're new to wearing rings, or like a more classic style, this is probably for you.


8mm - Modern width

8mm is a modern/contemporary width that is gaining popularity. A little wider than traditional wedding bands, it has more presence than 6mm, but is still comfortable for daily wear.


9mm+ Very wide

Rings this wide are uncommon and make a statement. If you're looking at something this wide, you probably already know what you want. If you're not used to wearing jewelry, a ring this wide might bother you.

Remember Very wide rings tend to fit more snugly. You might need to adjust the size you order if you're getting a wider (9mm+) ring.


Cheap sizers (both plastic and metal) and DIY sizing is often inaccurate.

This sizing kit is perfect for figuring out your correct ring size at home!

How it works-

  1. Order the sizing kit and your ring*. We'll send the sizers out ASAP.
  2. Find which size fits best. Wear it for a while to make sure it fits well.
  3. let us know your size & return the sizers with the prepaid label. (Prepaid return label unavailable on orders outside USA**)
  4. We'll get started on your ring in your size!

*orders for a sizing kit only without a ring will be canceled.

** If you're outside the US, you'll have to work out returning the sizing kit yourself, sorry for the inconvenience.

Your size simplified-

These sizers are a perfect match for our rings and come in a range of widths, so you know you'll get your size correct the first time. 


Ring sizing is very personal, and a quick sizing at a jeweler often isn't enough to get an idea of what really fits best. Worse still, some jeweler's sizers don't even run 100% true to size!

With this set of precision sizers you can try a ring in the proper width (wide and narrow rings of the same size feel different on the finger) for an extended period to make sure it's a good fit.

How Long Will My Order Take?

How long will it take to receive my order?

Currently, orders are taking 3-4 weeks to craft, plus transit time.

If you need your ring sooner, please contact me and I'll do my best to make it happen!

Each Richter Scale ring is handcrafted to order, one at a time in my Florida based workshop. I don't resell mass-produced rings from China. That means that my rings don't ship at Amazon speed. Quality takes time.

Shipping & Returns

Shipping- We ship worldwide! Taxes & import fees may be collected by your country on delivery.

Returns- I accept returns but keep in mind each ring is custom made to order, so conditions apply. Please see my detailed policies here.

100% Lifetime Guarantee

If you EVER have any problems with your ring as a result of flaws or defects in workmanship during the life of your ring I will gladly repair or replace the product at no charge to you! I stand behind my work 100%

Excessive wear or damage from abuse/neglect is not covered.

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Customer Reviews

Based on 1 review
Aly Dempsey
Sizing kit was amazing

The sizing kit came more in handy that I could have ever imagined. Plus the wide variety of sizes blew my mind!!
So for the longest time my fiancé said he was a size 9. Well after receiving the sizing kit, turns out the 9.5 was perfect!