Guide for Buying the Perfect-Sized Ring

Whether you are buying a ring for yourself, a friend, your loved one, or are planning to propose to your high school sweetheart, it is key to get the sizing right! The last thing you want is a ring that is too tight or too loose. But getting the perfectly sized ring, especially when it comes to Round rings, isn’t a straightforward affair; it requires proper discernment, research, and technical know-how (if you will). That being said, here's a detailed guide that will teach you how to buy rings and other rings just like the ones we sell right here at AGI Design in Toronto.

Factors that Affect Ring Size and Fit

When determining the right ring size for Round rings and the like, you need to first familiarize yourself with the factors that affect sizing. Some of these factors include:

Finger Shape

The saying "all fingers are not equal" couldn't have been truer! Finger shapes and physiology vary from person to person, which can affect sizing. For instance, if your fingers are knotted, the ring has to fit the knuckle in the mid-point of the finger (because it is the widest part). But more often than not, rings tend to be loose on this finger, especially around the base. So you might want to integrate sizing beads on your ring.

On the other hand, if your finger is tapered, where it widens around the base, your ring will fit perfectly by the base. However, rings tend to slip off tapered fingers when they slide upwards. So consider the shape of your finger or that of your loved one before buying that platinum ring on your wish list.

External and Internal Factors

Pregnancy, diet, temperature, physical activity, and seasonal changes can all affect your fingers, which may in turn affect sizing. This means you shouldn't be surprised if your finger size changes at a certain time.

In the same vein, don’t expect your partner's or loved one’s ring size to remain the same. It doesn’t matter how confident you are about their ring size; it wouldn’t hurt to check in with them before you research ring prices!

International Size Charts

For rings in Canada and the United States, sizes typically range from 2 to 13 (including half and quarter sizes). Rings, like Round rings, are measured in millimeters or inches, by the circumference or diameter of the ring. The circumference measures the length of the band, while the diameter factors in the inside length. Note that international sizing for Platinum rings and other rings varies by location and scale.

Band Width

According to experts, rings with thicker bands typically fit snugly, while those with thinner bands tend to be loose. Ultimately, the amount of metal around your finger determines its fit. Take, for instance, a thin Round ring will not fit as well as a thicker one in size 6. So if you’ve taken a liking to a particular ring (say, a Platinum ring) with a thin band, it is best to go for a size smaller than your usual size.

How to Determine Ring Size

Accurately determining your ring size can be done using a few simple at-home techniques or professional methods for the most precise fit.

Measuring Your Ring Size at Home 

Yes, you can measure your ring size from the comfort of your home, hassle-free. However, you will need a virtual ring size to serve as a guide. The guide typically contains different ring sizes represented by different circles. First, print out the virtual ring size and check the scale with a ruler. Then, put on your Round ring, or any ring of your choice, on your desired finger (on the right hand). Check the internal diameter and match it to the corresponding size on the guide, and you are good to go!

Alternatively, you can use the Paper Technique. First, wrap your chosen finger with a thin piece of paper. Make sure you don’t wrap too tightly and that the faux ring fits comfortably. Get a pencil and mark the area where the ends of the paper intersect.

Then, measure the length of the paper with a ruler and compare the measurement to the circumference of the rings on the size guide. If you use this technique correctly, you are sure to find a corresponding ring size and can effortlessly buy Round rings in the perfect size.

The Ring Technique

If these two methods don’t work, there’s a third that promises to work: the Ring Technique! For this, get an existing ring that fits the desired finger on your left hand. Place the ring against a ruler and measure its inner diameter. Then, compare the results to the measurements on the size guide to find your ideal ring size. You can also print the guide (to scale) and place the ring on top of the ring images to find a size that perfectly matches yours.

Enlist Professional Help

If you don’t want to take any chances by measuring your ring size yourself, it is best to enlist the service of a professional jeweler. Rest assured, a professional will give you an accurate measurement of your ring size. Generally, jewellers use sizing rings, a large chain with a set of rings in various sizes, to gauge your ring size.

All you need to do is try on the rings on the keychain to find your accurate ring size. However, the sizing rings for rings vary across jewellers. Some jewellers use a standard set while others use a set that mirrors their brand's designs and bandwidths. Optionally, you can purchase an affordable plastic ring sizer from Amazon.

A rule of thumb when buying rings in Canada is to go one or two sizes up so the ring will at least fit your finger or your loved one’s. Imagine how embarrassing or annoying it will be if you buy a surprise engagement ring that is too small to fit!

Conclusion

Here’s the good news: you can always have a ring resized if it is too big or too small. Reputable jewelry stores like AGI Design offer a free resizing service for all in-house rings, except full eternity bands. So you can purchase a stunning Round ring or any ring from the store and have it resized for free. How convenient!

FAQs

Are paper-based ring sizing methods trustworthy for final purchase decisions?

Paper methods provide a close estimate when done carefully, but slight measurement or wrapping errors make them less precise than professional or ring-based measurements.

Can resizing affect the structure of rings?

Resizing may slightly impact certain designs depending on metal type and setting complexity, but most standard rings can be adjusted without compromising overall structure.

Why is professional ring measurement considered more precise?

Professionals use calibrated sizing tools and multiple measurement checks, reducing human error and accounting for finger shape, ensuring the most accurate and consistent ring fit.

How do knuckle size and finger base size differ in ring fitting?

Knuckle size determines whether a ring can pass through comfortably, while finger base size determines long-term comfort and how securely the ring sits.

What should I do if my ring size falls between two standard sizes?

Choosing the slightly larger size is recommended, as it provides better comfort and allows easier adjustment if resizing becomes necessary later.