San Diego Chargers linebacker Melvin Ingram just dropped $22,000 on a RIDICULOUS custom grill ... complete with 700 DIAMONDS ... and TMZ Sports has the pictures.
In addition to the 6.88 carats of flawless, handcrafted diamonds ... there's also 14 carats of white gold.
We talked to Zahir Jooma -- owner of Icebox Diamonds & Watches in Atlanta -- who tells us Melvin LOVED the piece so much he told him he'd "never take it off."
Grill > Mouthpiece
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