More durable. Silver is a soft metal, more easily bent or scratched than most gold. The platinum adds a significant amount of hardness to the silver and helps jewelry resist being scratched. Increased hardness is most desirable for rings, which are subjected to a great deal of abrasion with normal daily wear.

More tarnish-resistant. Platinum doesn't tarnish. Copper does. So an alloy without copper is going to maintain its luster longer. Pt SS is estimated to be 7-8 times more tarnish resistant than 925 sterling. Tarnish resistance is good for any silver item, but especially for pins, pendants, and earrings.

Very bright. The copper in 925 sterling silver is, well, copper-colored. Copper gives sterling a very slight off-white color. Platinum is a white metal and keeps the silver as white as possible.

Note: you shouldn't use chemical dip cleaners to clean most of our regular silver jewelry. If the jewelry has a patina or antiquing on it (which is most of our items, except for the Wide Feather Earrings and Wide Feather Rings), the chemical dip cleaner will remove it.