Where to Farm Black Diamond

The best place to farm Black Diamond is Burning Steppes, where Blackrock Worg (level 54-55) drops it at 0.0%. That is the vanilla 1.12 chance, not yet confirmed in Forever. 66 sources are ranked below by drop chance.

Best zones:

Zone	Sources	Best source	Level	Drop%
Unknown zone	17	Borer Beetle	50-52	5.2%
Blackrock Depths	36	Crest Killer	54+	3.8%
Searing Gorge	4	Anvilrage Warden	49-50+	3.1%
Burning Steppes	3	Dark Iron Deposit		0.4%
Molten Core	6	Firelord	61-62+	0.0%

All sources, by drop chance:

Vanilla reference — from the 1.12 world data, not yet confirmed in Forever.

Source	Level	Zone	Spawns	Side	How	Drop%	Map
Borer Beetle	50-52		0		Drop	5.2%	map
Dark Keeper Uggel(elite)	55+		0		Drop	4.6%	map
Crest Killer(elite)	54+	Blackrock Depths	1		Drop	3.8%	map
Burrowing Thundersnout	50-52		0		Drop	3.6%	map
Dark Screecher	50-52		0		Drop	3.6%	map
Bloodhound Mastiff	54-55	Blackrock Depths	6		Drop	3.6%	map
Doomforge Craftsman	52-54	Blackrock Depths	24		Drop	3.5%	map
Anvilrage Officer(elite)	53-54+	Blackrock Depths	20		Drop	3.5%	map
Dredge Worm	50-52		0		Drop	3.4%	map
Blazing Fireguard(elite)	52-54+	Blackrock Depths	19		Drop	3.3%	map
Jaz(elite)	53+	Blackrock Depths	1		Drop	3.3%	map
Weapon Technician	54-56	Blackrock Depths	21		Drop	3.3%	map
Twilight's Hammer Executioner(elite)	55-56+		0		Drop	3.3%	map
Anvilrage Medic(elite)	52-53+	Blackrock Depths	31		Drop	3.2%	map
Doomforge Arcanasmith	54-55	Blackrock Depths	24		Drop	3.2%	map
Cave Creeper	50-52		0		Drop	3.2%	map
Shadowforge Citizen	54-56	Blackrock Depths	16		Drop	3.2%	map
Deep Stinger	50-52		0		Drop	3.1%	map
Shadowforge Peasant	52-54	Blackrock Depths	42		Drop	3.1%	map
Anvilrage Guardsman(elite)	50-51+	Blackrock Depths	58		Drop	3.1%	map
Anvilrage Warden(elite)	49-50+	Searing Gorge	42		Drop	3.1%	map
Anvilrage Overseer(elite)	48-49+	Searing Gorge	12		Drop	3.1%	map
Shill Dinger(elite)	56+	Blackrock Depths	1		Drop	3.1%	map
Twilight Bodyguard(elite)	53-54+	Blackrock Depths	5		Drop	3.1%	map
Grim Patron	48-52	Blackrock Depths	28		Drop	3.1%	map
Doomforge Dragoon(elite)	54-55+	Blackrock Depths	16		Drop	3.1%	map
Anvilrage Marshal(elite)	54-55+	Blackrock Depths	12		Drop	3.1%	map
Twilight's Hammer Ambassador	54-55	Blackrock Depths	12		Drop	3.0%	map
Bloodhound	49-50	Blackrock Depths	96		Drop	3.0%	map
Anvilrage Soldier(elite)	52-53+	Blackrock Depths	38		Drop	3.0%	map
Blackbreath Crony(elite)	53+		0		Drop	3.0%	map
Anvilrage Footman(elite)	51-52+	Blackrock Depths	54		Drop	3.0%	map
Twilight's Hammer Torturer(elite)	50-51+	Blackrock Depths	24		Drop	3.0%	map
Fireguard Destroyer(elite)	54-56+	Blackrock Depths	45		Drop	3.0%	map
Twilight Emissary(elite)	52-53+	Blackrock Depths	18		Drop	3.0%	map
Guzzling Patron	48-52	Blackrock Depths	28		Drop	3.0%	map
Shadowforge Senator	55-56	Blackrock Depths	34		Drop	2.9%	map
Dark Guard(elite)	53-54+		0		Drop	2.8%	map
Fireguard(elite)	50-52+	Blackrock Depths	11		Drop	2.8%	map
Dark Keeper Vorfalk(elite)	55+		0		Drop	2.8%	map
Molten War Golem(elite)	55-56+	Blackrock Depths	6		Drop	2.8%	map
Anvilrage Captain(elite)	55-56+	Blackrock Depths	2		Drop	2.5%	map
Ribbly's Crony(elite)	48-52+	Blackrock Depths	3		Drop	2.5%	map
Overmaster Pyron(elite)	52+	Searing Gorge	1		Drop	2.4%	map
Warbringer Construct(elite)	53-54+	Blackrock Depths	12		Drop	2.4%	map
Ragereaver Golem(elite)	54-55+	Blackrock Depths	4		Drop	2.4%	map
Hammered Patron(elite)	48-52+	Blackrock Depths	12		Drop	2.3%	map
Wrath Hammer Construct(elite)	55-56+	Blackrock Depths	3		Drop	2.3%	map
Arena Spectator	52-54	Blackrock Depths	24		Drop	2.2%	map
The Behemoth(rare)	50+	Searing Gorge	1		Drop	2.0%	map
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Needed for:

Quests:

Level	Quest	Needs
55	Libram of Constitution
55	Libram of Resilience
55	Libram of Rumination
55	Libram of Tenacity
55	Libram of Voracity

Recipes:

Recipe	Profession	Needs
Darkrune Helm	Blacksmithing	1x
Enchant Cloak - Subtlety	Enchanting	2x
Mongoose Boots	Leatherworking	4x

Drop% is the rate recorded in Forever once a source has been looted ten times; a greyed figure is the vanilla 1.12 chance from the world data (vanilla reference — from the 1.12 world data, not yet confirmed in forever). Spawns counts the source's spawn points in the world data. "Side" names which side can kill the NPC when the other finds it friendly. The lead picks the best chance among sources that are not a rare spawn and have at least three spawn points.