OSRS Drop Calculator › Diamond

Best way to farm Diamond

All 10 monsters that drop Diamond, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 1 other source isn’t ranked; see why below.

Drop data: Diamond on the OSRS Wiki

Currently fastest method
Commander Zilyana
18 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Commander Zilyana
Combat lvl 596
8/127 · 6 noted
 0.378 75 48 18
Vorkath (Post-quest)
Combat lvl 732
4/150 · 10–20 noted (2 rolls)
 0.8 163 22 18
Drake
Combat lvl 192 · Slayer 84
4/93 · 3–6 noted
 0.194 47 77 15
Albatross
Combat lvl 110
5/50 · 1
 0.1 29 124 12
Yama
Combat lvl 1238
3/95.11 · 40 noted
 1.26 573 6 7.9
Kraken
Combat lvl 291 · Slayer 87
1/128 · 8 noted
 0.062 32 112 7
Demonic gorilla
Combat lvl 275
17/500 · 4–6 noted
 0.17 91 40 6.7
Adamant dragon
Combat lvl 338
7/110 · 1–3 noted
 0.127 89 40 5.1
Ancient Wyvern
Combat lvl 210 · Slayer 82
3/132 · 3–5 noted
 0.091 66 55 5
Thermonuclear smoke devil
Combat lvl 301 · Slayer 93
1/107 · 10 noted
 0.093 78 46 4.3

Other sources (not ranked)

Guardian Drake is a superior slayer monster: it only appears randomly (~1 in 200 kills) while you’re on a slayer task. So it’s not included in the ranking above.

Monster Drops (rarity · quantity) Avg/kill
Guardian Drake
Combat lvl 376 · Slayer 84
4/93 · 3–6 noted (3 rolls)
 0.581
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.

Something wrong on this page?

Drop rates come from the OSRS Wiki and kill times are estimates, so mistakes happen. Tell us what's off and it'll be looked at.