Quality Assurance Benchmarks highlight workmanship of semi-finished and finished jewelry. Learn how to evaluate the quality of a platinum ruthenium ring with no diamonds in the shank that was sized up using a torch.

Side view of a platinum solitaire with no diamonds set in the shank
Perspective view of a platinum 4-prong solitaire with no diamonds set in the shank

Potential Problems and Engineering Features

Matching the Sizing Stock Alloy to the Ring Alloy

Solitaire ring setting without gemstone sitting next to a sizing wire with magnets above the wire

How-to Video

Sizing Up a Platinum Ruthenium Ring Using Sizing Stock and a Torch


Safety Reminder

Be sure to wear eye protection

Jeweler at the bench using a torch to size a ring

Featured Quality Assurance Benchmarks

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