Stacking rings are so versatile and fun. They come in a variety of shapes, sizes, and metals so it's pretty easy to create a collection for any style. What's better is that they mix and match so well that the possibilities are really endless.
A few stacking ring tips:
The more you stack the larger the size you'll need. If you wear a size 7 a few thin stacking rings in a size seven will likely fit fine. However, if you plan on stacking more than three thin bands or adding some wider bands to the mix chances are you will need to increase the size as you increase the width/number of bands. As far as I know there is not an exact rule of thumb for this increase, but plan on adding 1/4 to 1/2 size for rings that measure more than 4mm wide when stacked together and continue to increase the size as necessary. If you are a multi finger ring wearer (say that 10 times real fast!) you can experiment across the sizes you already own. Otherwise, it's best to sized by a jeweler before purchasing.
Solitaire rings might spin on your finger. Stacking rings with larger stones or decorative elements that are wider than their band will often spin on your finger when worn alone, especially if your knuckles are wider than where the ring will lay on the finger. Luckily, stacking them with other bands often alleviates this problem or at least makes it less noticeable.
There are no rules. There is no right or wrong way to stack rings. Well, maybe try to avoid so many rings that your finger wont bend, but then again, if you don't need to bend your finger...
It's not always a good idea to wear rings. You've probably already heard that you shouldn't wash your hands with your rings on. I ignore this rule most of the time, but if you have sensitive skin it's a good idea to take them off so soap isn't trapped underneath them. It's also not a great idea to wear rings when you're operating any type of rotating machinery, actually, it's a terrible idea, so don't do it. Heavy lifting/gripping is also out for ring wearers. Finally, pay attention to salt intake, dehydration, and weight gain all of which can lead to painful and anxiety inducing experiences if a ring becomes stuck on a swelling finger.
Thanks for reading!