Perfect Square gem


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Perfect Square gems are the 9th rank of gem in Diablo 3 and Reaper of Souls. These gems never drop and can only be created by upgrading Flawless Square gems via the Jeweler.

It requires 3 Flawless Square gems to create one of these, but as the upgrade cost isn't very high, most players use Radiant Square or Star gems (if not higher) rather settling for Perfect Squares.


With the closure of the Auction House and the advent of D3v2, players must find their own Flawless Squares to upgrade, rather than simply buying them in the Auction House.

  • 3 Flawless Square gems (same type) + 5000 gold = 1 Perfect Square gem
  • 3 Perfect Square gems (same type) + 10000 gold = 1 Radiant Square gem

Gem Ranks[edit]

A full list of gems by rank. Drop levels are approximate up to 60, with some overlap between each ascending level of gem.

  1. Chipped gem -- Drops from level 15-20 targets.
  2. Flawed gem -- Drops from level 21-25 targets. ]
  3. Regular gem -- Drops from level 26-30 targets.
  4. Flawless gem -- Drops from level 31-36 targets.
  5. Perfect gem -- Drops from level 37-42 targets.
  6. Radiant gem -- Drops from level 43-48 targets.
  7. Square gem -- Drops from level 49-54 targets.
  8. Flawless Square gem -- Drops from level 55-60 targets.
  9. Perfect Square gem -- Upgrade only.
  10. Radiant Square gem -- Upgrade only.
  11. Star gem -- Upgrade only.
  12. Flawless Star gem -- Upgrade only.
  13. Perfect Star gem -- Upgrade only.
  14. Radiant Star gem -- Upgrade only.
  15. Marquise gem -- Upgrade only in D3: Drops lvl 61+ in Reaper of Souls.)
  16. Imperial gem -- RoS-only. Upgrade, or rarely drops from lvl 61+ on Master+ difficulty.
  17. Flawless Imperial gem -- Upgrade only. RoS only.
  18. Royal gem -- Upgrade only. RoS only.
  19. Flawless Royal gem -- Upgrade only. RoS only.

Perfect Square Gem Stats[edit]

The stats for all types of Perfect Square Gems, as of D3v2 and RoS.

Quality Gem Helm Other Weapon
ItemGemAmethystRank9.png Perfect Square Amethyst +13% Life +38 Vitality Each Hit Adds +105 Life
Diamond-R09-perfect-square.png Perfect Square Diamond Reduces cooldown of all skills by 7.5% +38 Resistance to All Elements Increases damage against Elites by 10%
ItemGemEmeraldRank9.png Perfect Square Emerald +21% Increased Gold Find +38 Dexterity Critical Hit Damage Increased by 50%
ItemGemRubyRank9.png Perfect Square Ruby Increases Bonus Experience by 21% +38 Strength +40 Damage
ItemGemTopazRank9.png Perfect Square Topaz 21% Better Chance of Finding Magical Items +38 Intelligence Ranged and Melee attackers take 200 damage per hit.

See the gems article for stats and upgrade costs for all ranks and types of gem.