Here's one of the coolest pieces of ice you'll ever see ... a jeweler made a custom diamond pendant of Colin Kaepernick kneeling -- and he's set to sell it for charity!!!
Moses The Jeweler in NYC created the piece ... and it's insane. TMZ Sports has learned it cost $90,000 to make, and it was produced with 18k yellow gold.
We're told it also has VVS hearts and arrow cut diamonds -- and took A YEAR to create.
Of course, the jewelry is a replication of the famous moment when Kaepernick first began kneeling for the national anthem as a member of the 49ers back in 2016.
We're told all of the profits that are made from the piece will be donated directly to the Know Your Rights Camp -- Colin's organization that preaches equality for all.
Bidding starts in a couple weeks ... with the starting price being set at $90k.
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