Marks of a Quality Chain
It is made of sterling silver (925) or above.
Silver with Gold Overlay
It made of sterling silver (925) with gold plating. Gold plating means that there is a greater thickness of gold covering over the silver (1 micron and above) it means that the gold will not wear off with normal use.
Light Trace Chain - Sterling Silver with Gold Overlay
It has a good weight of silver and good thickness of gold plate pertinent to the design of the chain allowing for fluidity and movement so it sits well on the neckline.
The chain carries an independant hallmark.