Setting a Round Center Stone in a Ring with Platinum Prongs

Quality Assurance Benchmarks highlight workmanship for semi-finished or finished jewelry. Learn how to evaluate the quality of the setting of a ring with platinum prongs.

Close-up side view of platinum, four-prong solitaire with a round center stone

Close-up view of a four-prong, platinum solitaire with a round center stone

Close-up perspective view of a four prong, platinum solitaire with a round center stone

Potential Problems and Engineering Features

The following problems can occur due to errors in workmanship:

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

Close-up view of a four-prong, platinum solitaire featuring no bearing in the prong for the stone but with a small amount of metal formed over the top of it.

Setting a Round Stone in a Solitaire Ring with Platinum Prongs

Setting a Round Stone in a Solitaire Ring with Platinum Prongs

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Featured Quality Assurance Benchmarks

Learn how to determine finger and ring sizes accurately. Contains video and illustrations

Determine Finger and Ring Size

Learn how to determine finger and ring sizes accurately

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

Refinish Worn Platinum Jewelry

Techniques for refinishing worn platinum jewelry

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

Evaluate the quality of a platinum ruthenium ring with diamonds in the shank that was sized up using a laser welder. Contains video and illustrations.

Sizing Up: Platinum Ruthenium

Sizing up a platinum ruthenium ring using a laser welder