Is there such a thing as blackened platinum?

[talkdiamond2me]

I have some blackened jewelry, such as an 18K white gold pendant and bracelet. I love the look, and was wondering if anyone ever heard of blackened platinum jewelry. My husband and I are in the processes of resetting my engagment ring stone. I found some blackedned yellow gold eternity bands and thought it would be really nice to have a blackened platinum engagement ring to wear in between the two eternity bands. Anyhow, just a thought. Thanks for your input.

 

[Manmountain]

Although I have never done it myself, there is a black rhodium plating available.