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How To Size A Ring

Know what size ring you need before you shop so you can buy perfectly-fitting jewelry every time. To determine ring size, you can place a ring that fits you on a professional ring sizer mandrel, use a professional ring sizer, or find an approximate fit with a ring size chart or finger size strip. Make sure to measure your finger at room temperature. Heat and cold can cause your fingers to swell or constrict.

Determine Ring Size With a Ring Size Chart

Use a ring that fits you to determine your ring size. Place your ring over the nearest size circle. The inner edge of the ring should align with the outer edge of the circle. If your ring appears to fit between two sizes, buy the larger size.

Ring Size Chart

Measure Ring Size With a Finger Size Strip

To create your own ring sizer, print and cut the strip below. Insert the narrow end of the sizer through the "cut here" slot. With numbers on the outside, place the loop around your finger, and pull until the fit is snug but comfortable.

Finger Size Strip

Know When You Can Resize Rings

Most jewelers will happily adjust a ring two sizes in either direction. More extreme adjustments can noticeably impact the look and structure of your jewelry.  Increasing the size of a gold or silver ring typically requires gently hammering the ring around a sizing shaft. This will cause the shank of the ring to thin slightly. In some rings the end result will not be perfectly round. Some jewelers will not resize platinum because of its density and strength. To increase a ring more than one full size or to adjust a ring with stones, your jeweler may prefer to make an incision in the ring to remove or insert extra metal. This adjustment may leave a visible seam or an invisible weak point, but a professional jeweler can position flaws out of sight.