Has a 3% chance per rank of transmuting a gathered resource to a higher tier.
Release date 14 March 2016 (Update)
Gizmo type Tool
Maximum rank 3

Polishing is an Invention perk that has a chance to transmute a gathered resource to a higher tier. It can be created in tool gizmos.

When the perk triggers, it prompts the message: Your polishing perk upgrades the gathered resource.

When Polishing activates, the experience gained in the gathering skill will be that of the original item, not the transmuted item. For example, if Polishing transmutes a regular log into an oak log, only 25 Woodcutting experience will be gained, instead of 37.5 experience.

Upgrade chance
Rank Chance (level 20)
1 3% (3.3%)
2 6% (6.6%)
3 9% (9.9%)


Level Original item Transmuted item Profit/loss
1 Raw shrimps Raw shrimps Raw anchovies Raw anchovies 109
1 Raw crayfish Raw crayfish Raw herring Raw herring 300
5 Raw sardine Raw sardine Raw herring Raw herring 46
10 Raw herring Raw herring Raw cod Raw cod 436
16 Raw mackerel Raw mackerel Raw cod Raw cod 635
20 Raw trout Raw trout Raw salmon Raw salmon 118
23 Raw cod Raw cod Raw tuna Raw tuna -782
25 Raw pike Raw pike Raw salmon Raw salmon -135
30 Raw anchovies Raw anchovies Raw cod Raw cod 510
30 Raw salmon Raw salmon Raw tuna Raw tuna -174
35 Raw tuna Raw tuna Raw bass Raw bass 690
38 Raw rainbow fish Raw rainbow fish Raw bass Raw bass 560
40 Raw lobster Raw lobster Raw bass Raw bass 691
46 Raw bass Raw bass Raw swordfish Raw swordfish -697
48 Leaping trout Leaping trout Leaping salmon Leaping salmon 1
50 Raw swordfish Raw swordfish Raw monkfish Raw monkfish 662
52 Raw desert sole Raw desert sole Raw catfish Raw catfish 289
58 Leaping salmon Leaping salmon Leaping sturgeon Leaping sturgeon 170
60 Raw catfish Raw catfish Raw beltfish Raw beltfish 349
62 Raw monkfish Raw monkfish Raw shark Raw shark 498
68 Raw green blubber jellyfish Raw green blubber jellyfish Raw shark Raw shark 872
70 Leaping sturgeon Leaping sturgeon Raw shark Raw shark 1,178
76 Raw shark Raw shark Raw cavefish Raw cavefish 375
85 Raw cavefish Raw cavefish Raw rocktail Raw rocktail 2,443
90 Raw rocktail Raw rocktail Raw blue blubber jellyfish Raw blue blubber jellyfish 1,736
90 Raw tarpon Raw tarpon Raw seerfish Raw seerfish 0
91 Raw blue blubber jellyfish Raw blue blubber jellyfish Raw sailfish Raw sailfish -421
92 Raw seerfish Raw seerfish Raw sillago Raw sillago 1
93 Small crystal urchin Small crystal urchin Medium crystal urchin Medium crystal urchin 1 point
95 Medium crystal urchin Medium crystal urchin Large crystal urchin Large crystal urchin 1 point

Unaffected items


Level Original item Transmuted item Profit/loss
1 Copper ore Copper ore Iron ore Iron ore 154
1 Tin ore Tin ore Iron ore Iron ore 356
15 Iron ore Iron ore Coal Coal -364
20 Silver ore Silver ore Gold ore Gold ore 444
30 Coal Coal Mithril ore Mithril ore 87
55 Mithril ore Mithril ore Adamantite ore Adamantite ore 29
70 Adamantite ore Adamantite ore Runite ore Runite ore 1,385
77 Coal Concentrated coal rock Mithril ore Mithril ore 87
77 Coal Harmonised coal rock Mithril ore Mithril ore 87
84 Mithril ore Harmonised mithril rock Adamantite ore Adamantite ore 29
89 Adamantite ore Harmonised adamantite rock Runite ore Runite ore 1,385
90 Sea salt Salty crabletine Alaea sea salt Alaea sea salt 1
91 Sea salt Salty crablet Alaea sea salt Alaea sea salt 1

Unaffected items


Level Original item Transmuted item Profit/loss
1 Logs Logs Oak logs Oak logs 263
1 Achey tree logs Achey tree logs Oak logs Oak logs -414
15 Oak logs Oak logs Willow logs Willow logs -326
30 Willow logs Willow logs Maple logs Maple logs -136
35 Teak logs Teak logs Mahogany logs Mahogany logs 190
45 Maple logs Maple logs Eucalyptus logs Eucalyptus logs 647
47 Acadia logs Acadia logs[wc 1] Acadia logs Acadia logs 0
50 Mahogany logs Mahogany logs Yew logs Yew logs -127
54 Arctic pine logs Arctic pine logs Yew logs Yew logs -156
58 Eucalyptus logs Eucalyptus logs Yew logs Yew logs -583
60 Yew logs Yew logs Magic logs Magic logs 211
75 Magic logs Magic logs Elder logs Elder logs 8,922
90 Bamboo Bamboo Golden bamboo Golden bamboo 2
  1. ^ Effect triggers but does not change the log.

Unaffected items


MaterialRarityPerk ranks with X materials
Dextrous components
Dextrous componentsUncommon11–21–21–31–3
Oceanic components
Oceanic componentsRare11–21–22–32–3
Protective components
Protective componentsUncommon11–21–21–31–3
Padded parts
Padded partsCommon011–21–21–2
Fortunate components
Fortunate componentsRare11–21–21–31–3

Suggested gizmos

Gizmo layout Possible perks
Oceanic components
Oceanic componentsOceanic componentsOceanic components
Oceanic components
  • Polishing Polishing 2–3


  • Prior to a hotfix on 27 July 2016, if polishing triggered on a sillago, it would upgrade it to a wobbegong and cause the fishing spot to instantly deplete - it was treated as if you fished the last wobbegong from a wobbegong spot, not like you caught a sillago from a sillago spot [1]


  1. ^ Jagex. Mod Shauny's Twitter account. 16:56 27 July 2016. Mod Shauny: "#RSHotfix - Polishing will no longer upgrade fish to Wobbegong via fishing spots in the Arc. (This instantly depleted the spots before) ... Wobbegong fishing spots work differenly so when the perk upgraded it changed the spot hence why it instantly disappeared, there is no viable fix for this currently, but the Perk will work when catching a mid-tier > high-tier fish."
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