Mythic Horadric Seals in Diablo 4 look like purple, high-tier seals with a mythic border and charm-slot effects that stand out from magic, rare, and legendary versions. Players reporting them say they are distinct enough to recognize at a glance, with one common visual described as “shiny purple,” and examples showing variants like the Seal of the Diamond Mine and other mythic versions.

What they look like

  • They use a mythic visual style rather than the ordinary seal look, so the color and framing are the biggest cues.
  • Community screenshots and posts describe them as purple-toned and more ornate than lower-rarity seals.
  • The item name matters too: players have shared mythic variants such as Seal of the Diamond Mine and related mythic Horadric Seals.

Visible gameplay clues

  • Mythic seals can show unusually strong charm-slot effects, which makes them easy to spot even before reading the tooltip carefully.
  • One reported example had 5 charm slots and no set reducer, while another mythic version had 6 slots with a set-cost reduction effect.
  • Some players also report a bugged affix that can add a “+1 charm slot” line, making the item look even more unusual.

Quick scoop

In plain terms: they look like a shiny purple mythic seal with unusually powerful charm-slot affixes, and they stand out from the normal seal tiers by both color and tooltip effects.

If you want, I can also list the known mythic Horadric Seal names and what each one does.