Bill, 585 platinum doesn’t have a high profile because platinum
associations were savvy marketers.
In order to gain wide respect for platinum, the Platinum Guild
International USA was formed in 1992 for the purpose ofreeducating
American consumers about the advantages and high status of platinum.
They emphasized that platinum jewelry had a higher purity than 585
and 750 gold and that as a result, it was hypoallergenic, tarnish
resistant, and much more valuable. I think the Platinum Guild was
smart to resist efforts to cheapen platinum alloys and allow PLAT
585 because that helped platinum retain its status as the most elite
jewelry metal even when the price of gold surpassed that of
The U. S along with Bulgaria and Lithuania are the countries with
the lowest platinum fineness standard tinum alloys must have a
purity of at least 850 in order to be marketed as platinum. The U.
S. used to have the 850 minimum standard too, but because of
pressure from American manufacturers, it has become a country with
the lowest platinum standards.
In India, 950 is the only purity receiving a certificate from
Platinum Guild International. In Canada 950 is thelowest purity
allowed for pieces labeled as platinum. Therefore, if you are an
American manufacturer who would like to sell platinum jewelry in
Canada, make sure it has a fineness of at least 950.