Grandmaster Ursine Gauntlets - diagram location, stats

Grandmaster Ursine Gauntlets
Type	Heavy Armor
Tier	Witcher Item
Stats	+11% Adrenaline Point gain +6% Resistance to piercing damage +6% Resistance to slashing damage +6% Resistance to damage from monsters +6% Resistance to elemental damage
Require	Level 40
Glyph Slots	2

Grandmaster Ursine Gauntlets is a Heavy Armor piece in Witcher 3: Wild Hunt. They are middle-category armors that give adequate damage protection

Grandmaster Ursine Gauntlets - Diagram Location

The quest to start the armor piece diagram scavenging can be started by talking with Lazare Lafargue in Beauclair city, Toussaint

After that, you will find the diagram in Tufo Vineyard:

Grandmaster Ursine Gauntlets - Crafting Requirements