An experienced bench jeweler will often be able to create almost any design that doesn't actually violate the laws of physics. But colored stones are softer and typically less durable than diamonds, and a setting designed for a diamond may spell disaster with an opal or an emerald. The resulting creation may be beautiful when you first present it to the customer, but if the piece is worn frequently, it's likely to make a quick return to the jeweler's bench for repair. In this article expert gem setters share their tips and warnings for working with colored stones.... (2004) Complete Story
This 14-karat yellow gold heavy bracelet chain has a broken tongue at its critical springy location. An ideal method for its repair is a non-torch pulse-arc welding approach so the alloy in the mechanism is not annealed or softened in the process. For this repair, the ABI Tack II and Pulse-Arc welders provide the ideal solution.... (2004) Complete Story
With the popularity of tennis bracelets over the last 20 years replacing broken tongues has become a common repair in the jewelry shop. Typically these are replaced by soldering a new tongue in place. However, using a torch to solder a tongue onto a bracelet creates two problems.... (2005) Complete Story
The difficulty of chain repair lies in the fact that the chain is made up of fine wires. These wires heat up quickly when trying to melt the solder. Two problems develop. The first is if the wire link gets too hot, it will quickly melt as you are trying to solder.... (2003) Complete Story
A ring fits well when it is no longer felt on the finger. If in the course of time the size of the finger changes or if the ring is to be fitted for another wearer, a sizing of the ring is necessary. The first step is to determine the finger size, which is done with a ring sizer, a set of about 30 steel rings in graduated sizes.... (2001) Complete Story
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