How to Resize Diamond Rings

Written by john csiszar
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How to Resize Diamond Rings
A ring should be the right size to show off its inherent beauty. (diamond ring image by Brent Walker from

Rings need to be resized for a number of different reasons. The recipient of an engagement or other gift ring is often not present at the point of purchase for an accurate sizing. Fingers themselves often change size due to age or weight change, making a ring too large or too small. Fortunately, the jewellery industry is capable of resizing most rings and you can do it yourself if you have the right equipment and knowledge.

Skill level:

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Things you need

  • Diamond ring
  • Soldering iron
  • Metal cutter
  • Ring sizer

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  1. 1

    Assess the condition of the ring. Although most rings can be resized, ornate rings, or rings which have intricate designs, might require additional steps. For example, if your ring has gems all around the band, you might have to remove the stones before you resize the band, then reinsert or reattach the stones in the correct pattern. For complex rings such as this, you should consult a jeweller to discuss the best method for resizing your ring safely and properly.

  2. 2

    Cut a portion of the ring. If you are increasing the size of the ring by a half-size or smaller, sometimes a jeweller is able to simply stretch the ring to the appropriate size. Generally, however, you must cut through the original ring in order to resize it.

  3. 3

    Fit the band around the appropriate ring sizer. This will ensure that your finished product will be the correct size.

  4. 4

    Solder the ring back together. If you are decreasing the size of the ring, the soldering job will be easier, as you simply cut the excess metal to size, match the original ring ends and solder them back together. If you are increasing the size of your ring, you will have to add an additional piece of metal, matching the original ring. While soldering itself is a straightforward process, the difficult part comes in making a weld that is virtually invisible, so that no one can tell the ring has been altered.

  5. 5

    Polish and smooth the ring. Even with a perfect soldering job, you will need this extra step so that no trace of the resizing will be visible.

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