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Unsure of your ring size or someone else's?

Just slide this ring sizer onto your finger and adjust it to size, it works like a belt. It's small, reusable and convenient.

The ring sizer comes in an envelope printed with instructions. Measures whole and half US ring sizes, up to a size 17.

Note that it is always best to have your finger sized professionally by a jeweler.

Frequently asked questions about LUNATICART

Each item is made by hand to order and are processed in the order in which they are received. Fabrication time is up to 3 weeks. If you need it by a specific date please send me a message before placing your order.
When ordering a ring, please be 100% sure of the ring size you need. There are a few ways to discover it, and most of them can be found at this website (copy and paste this link into your browser please):


You can also go to a jewelry shop, it's free and more reliable.
I love to do custom orders whether that's a variation on an existing listing or a new item. Please get in touch if you have something in mind. It's always fun to work on new things!
Sterling Silver is the same recycled or freshly mined, I've chosen recycled, or refined, to avoid any new mining (thus the destruction of the environment).

Ring sizer, adjustable band


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Order summary



  • Craft type: Jewelry making
  • Material: Plastic
  • Ships worldwide from France
  • Feedback: 1786 reviews
  • Favorited by: 545 people