I have seen that some gathering tools in API:2/items don’t have the right icon, but simply the common one of each tool.
Just as example:
{"id":20324,“chat_link”:“[&AgFkTwAA]”,“name”:“Black Lion Harvesting Sickle”,“icon”:“https://render.guildwars2.com/file/EFBB674F9965A2304CBAC39376230396D73EBCFD/534199.png”,“description”:“Extremely efficient at gathering resources and uncovering rare components.”,“type”:“Gathering”,“rarity”:“Rare”,default_skin,“flags”:[“AccountBound”,“NoSell”,“AccountBindOnUse”],“game_types”:[“Activity”,“Wvw”,“Dungeon”,“Pve”],“restrictions”:[],“details”:{"type":"Foraging"}}
{"id":23029,“chat_link”:“[&AgH1WQAA]”,“name”:“Copper Harvesting Sickle”,“icon”:“https://render.guildwars2.com/file/EFBB674F9965A2304CBAC39376230396D73EBCFD/534199.png”,“description”:“Used to gather Blueberries, Button Mushrooms, Onions, Carrots, Herb Seedlings, Potatoes, and Lettuce.”,“type”:“Gathering”,“rarity”:“Basic”,vendor_value,default_skin,“flags”:[“AccountBound”,“NoSalvage”,“NoSell”,“AccountBindOnUse”],“game_types”:[“Activity”,“Wvw”,“Dungeon”,“Pve”],“restrictions”:[],“details”:{"type":"Foraging"}}
{"id":68377,“chat_link”:“[&AgEZCwEA]”,“name”:“Frostbitten Orichalcum Harvesting Sickle”,“icon”:“https://render.guildwars2.com/file/EFBB674F9965A2304CBAC39376230396D73EBCFD/534199.png”,“description”:“Used to harvest all plants.<br>Provides a chance for snowflakes when gathering.”,“type”:“Gathering”,“rarity”:“Masterwork”,level,vendor_value,default_skin,“flags”:[“AccountBound”,“NoMysticForge”,“NoSalvage”,“NoSell”,“AccountBindOnUse”],“game_types”:[“Activity”,“Wvw”,“Dungeon”,“Pve”],“restrictions”:[],“details”:{"type":"Foraging"}}
This issue exists for all kind of gathering tools: Sickle, Axe, Pick.