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PGI Study: Platinum is More Durable than Gold

The study compared platinum with alloys made of white gold
Platinum Rings
Credit: Marko Poplasen / shutterstock.com

A study commissioned by Platinum Guild International (PGI) to test the durability and wearability of alloys made of white gold compared to those made of platinum found that “platinum beats gold in both aspects”, according to Rough & Polished.

 

Man ring white clack diamond
Credit: Yahalomota / Moti Lissitzky

 

The study conducted a series of iterative wear and corrosion tests on two 950 platinum alloys, two 585 white gold alloys, and two 750 white gold alloys. According to the study “wear testing comprised a sequence including abrasion testing, corrosion testing, and polish testing. Mass loss was recorded after each test cycle. Five complete test cycles were followed by two long-term polish tests”.

 

wedding rings from silver platinum and titanium
Credit: Brian A Jackson

 

The results showed “a pronounced difference in the mass and volume loss between the platinum and the gold alloys”.



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