Celestrium is a trademarked brand of stainless steel alloy that is commonly used in jewelry production. It shows details well and is commonly used for school class rings.
With trademark rights owned by Balfour, a jewelry manufacturer, celestrium resembles white gold or platinum but is considerably more durable. It is more malleable than typical stainless steel, which allows it to be engraved, etched and pressed as easily as gold, but its strength and luster preserve the design and shine without tarnishing the way silver does. This chemical composition also means that jewelry fabricated from celestrium rarely needs cleaning or buffing to retain its brightness. This metal is more cost effective to process and produce than precious metals are, which keeps costs lower for consumers.