https://www.bungie.net/en/PGCR/3136461209?character=2305843009260988637
I finished this match December 8th in the evening and i didnt get the prismatic inferno emblem
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[quote]To qualify for the “Prismatic Inferno” emblem, players must have finished a Crucible match between 10 AM PST December 8 and 10 AM PST December 12 2017.[/quote] The game you linked is from Dec 2018, and as such does not qualify.