Not every jewelry store has a Laser machine. This Hi-tech machine is used by jewelers instead of using a torch.
A torch uses a high heat flame to join two pieces of metal together. This method has been used since Cleopatra had her ring made by an artisan. A torch is usually safe and is used in over 90% of all jewelry procedures where you need to join or attach two metals together.
A torch uses heat and heat can be harmful to fragile stones. If a fragile stone, like an emerald, is far from the area of solder, then there is virtually no chance of harm,. But many times a repair is right near the point of solder. If stones are close then they will have to be removed and there is an extra charge because of the risk of breaking prongs.
A Laser machine joins two metals together not using heat, rather a focused light beam that melts a very small area of metal. The benefit is there is very little heat generated at the melt point, allowing the jeweler to weld within 1/2 to 1millimeter of heat sensitive areas. A laser weld is much stronger than solder and maintains the purity of the metal.
On most all items using a laser welder you will not be able to tell where a piece of jewelry has been repaired. Laser welding is the only way to preserve an antique piece of jewelry and its value.
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