Gemstones
Gemstones can be found in ascension hunting areas after completing the Wyrm quests. They come in common, rare and elite versions. A total of 5 gemstones can be equipped. A gemstone can have common, rare, and legendary properties, but only 1 legendary may be equipped at any given time. So this gives you a max of 11 active properties (4 gemstones that have common + rare on them, and the 5th being common + rare + legendary).
Known gemstones:
Property: Hinterwilds: Warden of the Damned Rarity: Regional Mnemonic: hinterwarden Description: Your attacks have a 4/8/12/16/20% chance to Terrify undead creatures from the Hinterwilds.
Property: Bold Brawler Rarity: Common Mnemonic: boldbrawler Description: Your unarmed combat attacks have an additional 1/2/3/4/5% chance to tier up.
Property: Slayer's Fortitude Rarity: Common Mnemonic: slayersfortitud Description: You gain 1/2/3/4/5 effective Sheer Fear levels.
Tiered
Okay, that's the cutest gemstone so far. And it's a good one too!
Property: Immobility Veil Rarity: Common Mnemonic: immobiveil Description: Immobile effects applied to you have a reduced 1/2/3/4/5 second duration, to a minimum of 1 second. This benefit does not apply to immobilization due to Sheer Fear.
Tiered
Property: Subtle Ward Rarity: Common Mnemonic: subtleward Description: When you are subject to a dispel effect, less desirable spells will always be targeted before more desirable spells.
Property: Sureshot Rarity: Rare Mnemonic: sureshot Description: Your aimed attacks with ranged weapons have a 1/2/3/4/5% added chance to strike an enemy's eyes or head if it possesses eyes or a head.
Property: Moonsedge: Gift of Enlightenment Rarity: Regional Mnemonic: megiftenlighten Description: You earn 20/40/60/80/100% more LTE while hunting in Moonsedge, up to your daily cap.
Tiered
Property: Sureshot Rarity: Rare Mnemonic: sureshot Description: Your aimed attacks with ranged weapons have a 1/2/3/4/5% added chance to strike an enemy's eyes or head if it possesses eyes or a head.
Tiered
Property: Pixie's Mischief Rarity: Legendary Mnemonic: pixiemischief Description: Your debuff spells cost 1/2/3 less mana to cast, to a minimum of 1 mana, and your cast roundtime for debuff spells is reduced by 0/0/1 second, to a minimum of 1 second.
Tiered
Property: Opportunistic Sadism Rarity: Common Mnemonic: opporsadism Description: You gain 2/4/6/8/10% damage factor against poisoned targets. When your warding spells are successful, the endroll is increased by 2/4/6/8/10 if the target is poisoned.
Property: Companion's Swiftness Rarity: Common Mnemonic: companionsswift Description: When you have an active combat companion, it has a 5/10/15% chance to attack twice when attacking.