OSRS Drop Calculator › Uncut ruby

Best way to farm Uncut ruby

All 366 monsters that drop Uncut ruby, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 36 other sources aren’t ranked; see why below.

Currently fastest method
Vardorvis
101 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Vardorvis
Combat lvl 572–1136
5/100 · 25–37 noted
1.55 55 65 101
The Whisperer
Combat lvl 587–1146
5/100 · 58–87 noted
3.62 134 27 97
Glod
Combat lvl 138
Always · 1
1 37 97 97
Vet'ion
Combat lvl 454
4/126 · 50 noted
1.59 75 48 76
Duke Sucellus
Combat lvl 538–1099
5/100 · 41–62 noted
2.58 141 26 66
Scorpia
Combat lvl 225
6/128 · 15–20 noted
0.82 49 73 60
The Leviathan
Combat lvl 593–1157
5/100 · 37–56 noted
2.33 146 25 57
Calvar'ion
Combat lvl 264
4/128 · 17 noted
0.531 43 84 44
Kalphite Queen
Combat lvl 333
3/126 · 25 noted
1/12,902.4 · 1
0.595 78 46 27
Gemstone Crab
Combat lvl 160
2/32 · 1 (3 rolls)
0.188 25 144 27
Sarachnis
Combat lvl 318
2/100 · 20–30 noted
1/1,600 · 1
0.501 71 51 25
Callisto
Combat lvl 470
4/126 · 50 noted
1.59 231 16 25
Artio
Combat lvl 320
4/128 · 17 noted
0.531 79 46 24
Maggot King
Combat lvl 741
15/159 · 10–13 noted
1.08 202 18 19
The Nightmare
Combat lvl 814
3/100 · 27–60 noted
1.3 386 9 12
Skeletal Wyvern
Combat lvl 140 · Slayer 72
2/128 · 10 noted
1/4,369.07 · 1
0.156 47 77 12
Phosani's Nightmare
Combat lvl 1024
3/100 · 27–60 noted
1.3 514 7 9.1
Gorak (Gems)
Combat lvl 145–149
1/16 · 1
0.062 32 112 7
Mind Golem
Combat lvl 30
1/52 · 1
0.019 11 327 6.3
Chaos Golem
Combat lvl 70
2/52 · 1
0.038 23 157 6
Ogress Shaman
Combat lvl 82
4/116 · 1
0.034 21 171 5.9
Ogress Warrior
Combat lvl 82
4/116 · 1
0.034 21 171 5.9
Venenatis
Combat lvl 464
1/126 · 50 noted
0.397 245 15 5.8
Body Golem
Combat lvl 50
1/52 · 1
0.019 16 225 4.3
Spindel
Combat lvl 302
1/128 · 14 noted
0.109 132 27 3

Other sources (not ranked)

These also drop it but aren’t included in the ranking above. They’re all superior slayer monsters: they only appear randomly (~1 in 200 kills) while you’re on a slayer task.

Monster Drops (rarity · quantity) Avg/kill
Repugnant spectre
Combat lvl 335 · Slayer 60
1/64 · 1 (3 rolls)
0.047
Basilisk Sentinel
Combat lvl 358 · Slayer 60
1/104 · 1 (3 rolls)
0.029
Choke devil
Combat lvl 264 · Slayer 65
1/256 · 1 (3 rolls)
0.012
Ancient Custodian
Combat lvl 239 · Slayer 76
1/322.27 · 1 (3 rolls)
1 per 107 kills
King kurask
Combat lvl 295 · Slayer 70
1/330.67 · 1 (3 rolls)
1 per 110 kills
Giant rockslug
Combat lvl 86 · Slayer 20
1/341.33 · 1 (3 rolls)
1 per 114 kills
Mutated Terrorbird
Combat lvl 178 · Slayer 56
1/341.33 · 1 (3 rolls)
1 per 114 kills
Nechryarch (Normal)
Combat lvl 300 · Slayer 80
1/359.95 · 1 (3 rolls)
1 per 120 kills
Greater abyssal demon
Combat lvl 342 · Slayer 85
1/385.51 · 1 (3 rolls)
1 per 129 kills
Abhorrent spectre
Combat lvl 253 · Slayer 60
1/409.6 · 1 (3 rolls)
1 per 137 kills
Cave abomination
Combat lvl 206 · Slayer 58
1/409.6 · 1 (3 rolls)
1 per 137 kills
Marble gargoyle
Combat lvl 349 · Slayer 75
1/409.6 · 1 (3 rolls)
1 per 137 kills
Monstrous basilisk
Combat lvl 135 · Slayer 40
1/409.6 · 1 (3 rolls)
1 per 137 kills
Spiked Turoth
Combat lvl 244 · Slayer 55
1/409.6 · 1 (3 rolls)
1 per 137 kills
Nuclear smoke devil
Combat lvl 280 · Slayer 93
1/442.81 · 1 (3 rolls)
1 per 148 kills
Insatiable Bloodveld
Combat lvl 202 · Slayer 50
1/512 · 1 (3 rolls)
1 per 171 kills
Vitreous Chilled Jelly
Combat lvl 241 · Slayer 52
1/512 · 1 (3 rolls)
1 per 171 kills
Vitreous Jelly
Combat lvl 206 · Slayer 52
1/512 · 1 (3 rolls)
1 per 171 kills
Vitreous Warped Jelly
Combat lvl 241 · Slayer 52
1/512 · 1 (3 rolls)
1 per 171 kills
Night beast
Combat lvl 374 · Slayer 90
1/590.41 · 1 (3 rolls)
1 per 197 kills
Bloodthirsty Hydra
Combat lvl 501 · Slayer 95
1/2,048 · 1 (9 rolls)
1 per 228 kills
Flaming pyrelord
Combat lvl 97 · Slayer 30
1/682.67 · 1 (3 rolls)
1 per 228 kills
Infernal pyrelord
Combat lvl 134 · Slayer 30
1/682.67 · 1 (3 rolls)
1 per 228 kills
Nechryarch (Greater)
Combat lvl 300 · Slayer 80
1/682.67 · 1 (3 rolls)
1 per 228 kills
Insatiable mutated Bloodveld
Combat lvl 278 · Slayer 50
1/829.57 · 1 (3 rolls)
1 per 277 kills
Cockathrice
Combat lvl 89 · Slayer 25
1/1,024 · 1 (3 rolls)
1 per 341 kills
Crushing hand
Combat lvl 45 · Slayer 5
1/1,024 · 1 (3 rolls)
1 per 341 kills
Mutated Tortoise
Combat lvl 247 · Slayer 56
1/341.33 · 1
1 per 341 kills
Screaming banshee
Combat lvl 70 · Slayer 15
1/1,024 · 1 (3 rolls)
1 per 341 kills
Screaming twisted banshee
Combat lvl 144 · Slayer 15
1/1,024 · 1 (3 rolls)
1 per 341 kills
Shadow Wyrm
Combat lvl 259 · Slayer 62
1/1,216 · 1 (3 rolls)
1 per 405 kills
Guardian Drake
Combat lvl 376 · Slayer 84
1/1,488 · 1 (3 rolls)
1 per 496 kills
Chasm Crawler
Combat lvl 68 · Slayer 10
1/2,048 · 1 (3 rolls)
1 per 683 kills
Colossal Hydra
Combat lvl 309 · Slayer 95
1/2,048 · 1 (3 rolls)
1 per 683 kills
Dire gryphon
Combat lvl 209 · Slayer 51
1/2,048 · 1 (3 rolls)
1 per 683 kills
Blood-starved venator
Combat lvl 246 · Slayer 74
1/2,096 · 1 (3 rolls)
1 per 699 kills
How this is calculated: items/hr = (3600 ÷ seconds per kill) × average items per kill. Each monster's drop lines are listed as the wiki shows them (rarity · quantity); the average adds them all up, each as rarity × average quantity × rolls — so a guaranteed drop plus a rarer bonus drop both count. Drop rates and quantities come from the OSRS Wiki's community-verified drop tables. Seconds-per-kill is an editable estimate based on each monster's hitpoints and defence — your real speed depends on your stats and gear, so adjust it and your edits are remembered on this device. Rates marked ~ are approximate on the wiki.