The moment you see Lvl 3s spawning, don't hesitate to recall your troops from Lvl 2s and use them to harvest lvl 3s instead. However, don't go to corners because most people will get there as well, thinking that its the least populated areas. Relocate to a desolate place, such as the edge of the map. Shelter all your infantry and ranged units if possible, leaving only your Calvary troops behind so that you can auto select your gathering troops faster. A good relic set for this is the saber fang set. They are the fastest units, and you won't have to worry about them getting wounded or killed because they are cheap to produce. Use Tier 1 Calvary troops (cataphract) to gather. How to maximise gem gathering efficiency?
You don't have to clear existing gem lodes for new ones to spawn
Every 6 hours, every level of gem lodes spawn 3 times, except for Lvl 5, which only spawns twice (Will be confirmed once the next round of KvK ends.) Only the gem harvesting research in the economy tab helps. Items such as 50% gather boost, and talent points in gathering speed, will not affect gem harvesting rate. Harvest rate is same with every gem lode level Without research, it take approximately 10 seconds to harvest 1 gem. In every wave of gem lodes, there are 5 different levels of gem lodes Simply put, gem lodes spawn at 1.00pm, 7pm, 1am and 7am. Gem lodes spawn in the victorious kingdom right after KvK, and at every 6 hours for 24 hours.