This all-diamond ring is set for a (RED) charity auction at Design Miami. It was created by the combined efforts of Apple’s design head Jonathan Ive and designer Marc Newson.

This artifact, like the name states, doesn’t have the traditional metal band all rings have, being entirely made of diamond. It was instead cut from a single diamond with the aid of a laser guided by a micrometer-thick water jet.

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The all-diamond ring is said to have 2,000-3,000 facets in its entirety. According to Sotheby’s, these are the biggest number of facets seen in a diamond ring so far, considering that some of them measure just millimeters in size.

The ring is set to be auctioned in on December 5th in Miami. The profits will go to (RED), a charity group created by singer Bono from U2 and activist Bobby Shriver, which is dedicated to fighting HIV/AIDS. Sotheby’s also estimates that the all-diamond ring will go for $150,000 to $250,000 in the auction.

The event is set to take place on the evening of the 5th of December at the Moore Building located in the Miami Design District. Aside from the all-diamond ring, more than other pieces will also be displayed for auction until the 7th of this same month.

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Jonathan Ive and Marc Newson have already worked together in other past projects though this is their first accomplishment in the jewelry department. Aside from the all-diamond ring, the two men have also created a one-off Leica camera in 2013 as well as a Christmas tree which was set at the London hotel Claridge’s in the year 2016.