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 10
1 Raw crayfish Raw crayfish Raw herring Raw herring 160
5 Raw sardine Raw sardine Raw herring Raw herring -95
10 Raw herring Raw herring Raw cod Raw cod 469
16 Raw mackerel Raw mackerel Raw cod Raw cod 558
20 Raw trout Raw trout Raw salmon Raw salmon 5
23 Raw cod Raw cod Raw tuna Raw tuna -680
25 Raw pike Raw pike Raw salmon Raw salmon 159
30 Raw anchovies Raw anchovies Raw cod Raw cod 626
30 Raw salmon Raw salmon Raw tuna Raw tuna -246
35 Raw tuna Raw tuna Raw bass Raw bass 1,103
38 Raw rainbow fish Raw rainbow fish Raw bass Raw bass 1,036
40 Raw lobster Raw lobster Raw bass Raw bass 915
46 Raw bass Raw bass Raw swordfish Raw swordfish -1,095
48 Leaping trout Leaping trout Leaping salmon Leaping salmon 22
50 Raw swordfish Raw swordfish Raw monkfish Raw monkfish 598
52 Raw desert sole Raw desert sole Raw catfish Raw catfish 195
58 Leaping salmon Leaping salmon Leaping sturgeon Leaping sturgeon 159
60 Raw catfish Raw catfish Raw beltfish Raw beltfish 440
62 Raw monkfish Raw monkfish Raw shark Raw shark -25
68 Raw green blubber jellyfish Raw green blubber jellyfish Raw shark Raw shark 286
70 Leaping sturgeon Leaping sturgeon Raw shark Raw shark 656
76 Raw shark Raw shark Raw cavefish Raw cavefish 261
85 Raw cavefish Raw cavefish Raw rocktail Raw rocktail 878
90 Raw rocktail Raw rocktail Raw blue blubber jellyfish Raw blue blubber jellyfish 1,844
90 Raw tarpon Raw tarpon Raw seerfish Raw seerfish 0
91 Raw blue blubber jellyfish Raw blue blubber jellyfish Raw sailfish Raw sailfish -671
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 123
1 Tin ore Tin ore Iron ore Iron ore 305
15 Iron ore Iron ore Coal Coal -274
20 Silver ore Silver ore Gold ore Gold ore 251
30 Coal Coal Mithril ore Mithril ore 77
55 Mithril ore Mithril ore Adamantite ore Adamantite ore 55
70 Adamantite ore Adamantite ore Runite ore Runite ore 739
77 Coal Concentrated coal rock Mithril ore Mithril ore 77
77 Coal Harmonised coal rock Mithril ore Mithril ore 77
84 Mithril ore Harmonised mithril rock Adamantite ore Adamantite ore 55
89 Adamantite ore Harmonised adamantite rock Runite ore Runite ore 739
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 -150
1 Achey tree logs Achey tree logs Oak logs Oak logs -858
15 Oak logs Oak logs Willow logs Willow logs -38
30 Willow logs Willow logs Maple logs Maple logs -33
35 Teak logs Teak logs Mahogany logs Mahogany logs 270
45 Maple logs Maple logs Eucalyptus logs Eucalyptus logs 715
47 Acadia logs Acadia logs[wc 1] Acadia logs Acadia logs 0
50 Mahogany logs Mahogany logs Yew logs Yew logs -178
54 Arctic pine logs Arctic pine logs Yew logs Yew logs -138
58 Eucalyptus logs Eucalyptus logs Yew logs Yew logs -634
60 Yew logs Yew logs Magic logs Magic logs 218
75 Magic logs Magic logs Elder logs Elder logs 5,503
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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