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Celestrium is a trademark of a type of an austenitic stainless steel used in jewelry. It resembles white gold, but is cheaper and more durable. Celestrium is strong, resistant to chemical reaction, and easy to maintain. The same or similar alloys are marketed as white ultrium, in particular when used for class rings.
- ^ http://www.balfour.com/support/faq/rings/
- ^ "What is celestrium?". Reference. Retrieved 2017-04-08.