Ja Morant might've fallen short in his quest to secure an NBA Championship ring, but he's still winnin' in the jewelry game ... after the Grizzlies star copped an awesome, iced-out pendant of his logo -- and TMZ Sports has the details!
The NBA star recently took a trip to the famed Ice Box jewelry store after the Thunder swept the Grizzlies in the NBA Playoffs.
Morant -- who suffered an injury during the playoff series -- wanted to turn his frown upside down .