This item can be crafted at the Alchemist with crafting materials.
Going by item value in Gold, this totals 590 (plus 10 Gaia’s Tears, which don’t have a direct Gold price).
If we look at how much Gaia’s Tears cost compared to Gold:
We see that Gold is worth (at the time of writing) almost twice as much as Gaia’s Tears. Prices for tokens in $USD will always fluctuate based on what’s happening on the market, with the prices going up when ingame demand increases and going back down when demand decreases. Free economy, etc. But, for the sake of argument, let’s assume it won’t deviate too far outside of [Gold/4]<Gaia’s Tear>[Gold*4], which would give it a fluid value of 0.25-4 Gold. At most this would put the value of 10 Gaia’s Tears at 40 Gold.
Bringing the total Gold for a Toughness Potion to 630
It might also be worth checking out items at the Trader at the Marketplace to see how much liquidity there is in a certain item. Click here for more about the Trader.
At the time of writing, there were no Toughness Potions available at the Trader:
Click to learn more about Item Liquidity Pools
Once PVE and PVP options are available, these items will significantly increase in demand and the price will go up in the Trader accordingly.