Quality Assurance Benchmarks highlight workmanship of semi-finished and finished jewelry. Learn benchmarks for evaluating the quality of platinum jewelry that was furbished after wear using burnishing and light buffing techniques.

Quality of Platinum Jewelry that was Furbished by Burnishing Side view of a three-stone platinum ring with a cushion-shaped center stone flanked by two trillion-cut stones
Quality of Platinum Jewelry that was Furbished by Burnishing Perspective view of a three-stone platinum ring with a cushion-shaped center stone flanked by two trillion-cut stones. The PT 950 stamp is readable inside the bottom of the shank.

All gemstones are tight, secure, and undamaged

Potential Problems and Engineering Features

This platinum ring was an ideal candidate for burnishing followed by light buffing. Prior to finishing, it had nicks on the shank, and light scratches on all surfaces typical from daily wear over many years.

Although the dimensions of this platinum ring are substantial, burnishing rather than filing or using abrasives is a better method to prevent unnecessary removal of metal.

How-to Video

Platinum Burnishers

Platinum can be burnished either by hand or through the use of rotary tools. The devices shown below are used for hand burnishing.

Platinum can be burnished using rotary burnishers mounted in a flexible shaft or a micro-motor handpiece. These tools work well in a variety of applications.

Featured Quality Assurance Benchmarks

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