Prefinishing Platinum

Quality Assurance Benchmarks highlight workmanship of semi-finished and finished jewelry. Learn best practices for prefinishing platinum jewelry.

Perspective view of a platinum ring with a halo setting, featuring a split shank set with diamonds
Evaluate the quality of a platinum cobalt ring with no diamonds in the shank that was sized down using a torch. Contains video and illustrations.

Prefinishing: Quality Assurance Benchmarking

Little or no metal should be removed during the three steps of prefinishing platinum jewelry. If removing a small amount of metal is necessary, take the following precautions.

Close-up view of a jeweler using a rotary burnisher to prefinish the inside of a platinum ring

Platinum rings must be rounded prior to prefinishing

Side view of a platinum princess-cut solitaire

Maintain Design Elements and Engineering Detail

Perspective view of a platinum ring with diamonds set in the shank

Prefinish all small, hard-to-access areas

Two close-up views of platinum solitaire settings, featuring negative space and other design details

Maintain Dimensions

Shape Retention: Maintain Flat Areas

Perspective view of a platinum ring with diamonds set in the shank

Prefinishing: Tools and Techniques

Initial Prefinishing Steps

Close-up view of a jeweler cleaning a platinum solitaire in preparation for prefinishing

Abrasive Wheels

Close-up view of a tool organizer holding a variety of abrasive wheels

Abrasive Bands

Three 3M Flexible Diamond abrasive bands; numbers are visible on the shaft

Abrasive Papers and Film

Close-up view of a tool organizer holding a variety of abrasive wheels

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Featured Quality Assurance Benchmarks

Quality of Platinum Jewelry that was Furbished by Burnishing

Refinish Worn Platinum Jewelry
Burnishing: Evaluate the Quality of Platinum


 

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    Evaluate the quality of platinum jewelry that has been worn and then refinished.

    Refinish Worn Platinum Jewelry

    Techniques for refinishing worn platinum jewelry


     

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      Learn how to evaluate the quality of a platinum ring that has been prefinished, polished, and buffed.

      Prefinish and Finish Platinum
      Evaluate a prefinished, polished, and buffed platinum ring

       

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        Evaluate the quality of the setting of a ring with platinum prongs

        Set a Round in Platinum Prongs
        Setting a round center stone in a ring with



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