Si vous avez loupé l'info, voilà la liste des gemmes légendaire en anglais (en cours de développement, pas encore implémentées sur le PTR)
Legendary Gems http://www.diablofans.com/news/48123-legendary-gems-character-copy-cooldown-seasons-to
The datamined info for Legendary Gems suggests that they will have two "special affixes". The Primary one being static (or rolled when the item drops), and the Secondary one being upgradeable by the new Artisan, Urshi - found in the depths of Greater Rifts. It is worth noting they are still not implemented in the current version of the PTR, as the blue post below explains, but should be soon
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Originally Posted by Blizzard (Blue Tracker / Official Forums)
We're still developing and designing Legendary Gems, so they have not yet been implemented. They're just not ready for testing on the 2.1.0 PTR right now. Once we've fleshed out Legendary Gems a bit more, we'll patch them in with a later PTR build. Each PTR patch will be accompanied by patch notes (published in the PTR launcher and the front page of this site), so just keep an eye on those notes to see when Legendary Gems become available.
Legendary Gems are still undergoing significant iteration at this time, so you won't see them available on the PTR right away. The gist is that these gems are infinitely upgradeable, and provide special Legendary powers when socketed into the appropriate gear slot. They can only be socketed into Rings and Amulets, and can be upgraded by completing additional Greater Rifts. The higher you place in a Greater Rift, the more likely your gem will be successfully upgraded. We'll have more details in the future as we continue development on these powerful baubles, so stay tuned!
Source: http://us.battle.net/d3/en/blog/14244559/patch-210-ptr-preview-6-17-2014#greaterrifts
We have compiled a list of these Legendary Gems and their Primary and Secondary effects.
Gem of Damage after Elite Pack
Primary: Gain 30% increased damage for 20 seconds after killing an elite pack.
Secondary: Increases damage against elites by 20%.
Gem of Increased Damage Against CCed Enemies
Primary: Increase damage against enemies under the effects of control-impairing effects by [VALUE]%.
Secondary: Gain an aura that reduces the movement speed of enemies within 12 yards by [VALUE]%.
Gem of Steady Aim
Primary: Damage you deal is increased by [VALUE]% for every 10 yards between you and the enemy hit.
Secondary: [VALUE]% chance on hit to Stun the enemy for 1 second.
Gem of Primary Skill Hit Harder
Primary: Increase the damage of primary skills by [VALUE]%.
Secondary: Primary skills heal you for 2% of maximum health on hit.
Gem of Mini-Conduit
Primary:15% chance on hit to gain a mini-Conduit buff, dealing [VALUE]% weapon damage as Lightning every second to nearby enemies for 3 seconds.
Secondary: While under the effect of the mini-Conduit, gain [VALUE]% increased movement speed.
Gem of Poison DoT Debuff
Primary: Poison all enemies hit for [{VALUE1}*100]% weapon damage over 10 seconds.
Secondary: All enemies you poison take [{VALUE1}*100]% increased damage from all sources.
Gem of Deep Wounds
Primary: Critical hits cause the enemy to bleed for [VALUE]% weapon damage as Physical over 3 seconds.
Secondary: Gain Blood Frenzy, granting you [VALUE]% increased Attack Speed for each bleeding enemy within 20 yards.
Gem of Holy Smite
Primary: 15% chance on hit to smite a nearby enemy for [VALUE]% weapon damage as Holy.
Secondary: Periodically smite a nearby enemy.
Gem of Increased Attack Speed
Primary: [VALUE]% chance on hit to increase your Attack Speed by 2% for 3 seconds, stacking up to 10 times.
Secondary: Also Gain [VALUE]% Cooldown Reduction per stack.
Gem of Damage Reduction while CCed
Primary: While under any control-impairing effects, reduce all damage taken by [VALUE]%.
Secondary: Heal for [VALUE]% of maximum life when hit by control-impairing effect.
Gem of Pet Crit Chance
Primary: Increase the Critical Hit Chance of your pets by [VALUE]%.
Secondary: Your pets are unkillable.
Gem of Stagger Damage
Primary: 50% of all damage taken is instead staggered and dealt to you over [VALUE] seconds.
Secondary: [VALUE]% chance on kill to clear all staggered damage.
Gem of Goldsplosion
Primary: [VALUE]% chance on killing an enemy to cause an explosion of gold.
Secondary: Gain [VALUE]% increased movement speed for 3 seconds after picking up gold.
Gem of Increased Damage after Spending Resource
Primary: Gain 1% increased damage for 3 seconds after spending primary resource. This effect stacks up to [VALUE times. Gaining a stack refreshes all existing stacks.
Secondary: Gain 1% increased Armor for every stack.
Gem of Reduced Level Requirement - No datamined info for this particular gem.