Perfect Star gem


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Perfect Star gems are the 13th rank of gem in Diablo 3 and Reaper of Souls. These gems never drop and can only be created by upgrading Flawless Star gems via the Jeweler.

The Perfect Star gem is skipped over by players in Reaper of Souls, where Marquise and Imperial gems drop from lvl 61+ enemies.


With the closure of the Auction House and the advent of D3v2, players must find their own Flawless Squares to upgrade to higher level gems, rather than simply buying them in the Auction House. As each Perfect Star gem requires 243 Flawless Squares to upgrade, these gems can take some time to build up to.

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 Star Gem Stats[edit]

The stats for all types of Flawless Star Gems, as of D3v2 and RoS.

Quality Gem Helm Other Weapon
ItemGemAmethystRank13.png Perfect Star Amethyst +17% Life +54 Vitality Each Hit Adds +500 Life
Diamond-R13-perfect-star.png Perfect Star Diamond Reduces cooldown of all skills by 9.5% +54 Resistance to All Elements Increases damage against Elites by 14%
ItemGemEmeraldRank13.png Perfect Star Emerald +29% Increased Gold Find +54 Dexterity Critical Hit Damage Increased by 90%
ItemGemRubyRank13.png Perfect Star Ruby Increases Bonus Experience by 29% +54 Strength +130 Damage
ItemGemTopazRank13.png Perfect Star Topaz 29% Better Chance of Finding Magical Items +54 Intelligence Ranged and Melee attackers take 1250 damage per hit.

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