The first method involves using a ring stretcher. This method is not often recommended, as it makes the shank thinner and weakens the overall integrity of the ring.
The second method is a much safer alternative, but is used solely on wedding bands that have no stones. The ring is placed in a cylindrical bowl that is a size smaller than the ring. Then, with a flat-shaped tool, pressure is applied to an area of the ring, which compresses it. No gold is added or lost in this process.
The third method, used for sizing rings up, involves cutting the bottom of the shank, pulling the two sides apart, building a bridge of new gold based on the size needed and then soldering it in. This method preserves the thickness at the base of the ring, where it is most essential. Usually, a laser is used to weld the extra bridge of gold, giving us the ability to size a ring quicker and more accurately than with the traditional style.
The last method, used for sizing rings down, is accomplished by cutting the bottom of the shank, taking out the proper length of gold and soldering the original two pieces back together. A laser welder is used for the process as well, ensuring the most accurate sizing.
One concern that customers tend to have relates to the integrity of the side stones after a ring has been sized either up or down. The stones are always checked before sizing; if any of them are loose, they are tightened before continuing. This ensures that none of them will be compromised during and after the process.