you could have checked the ingredients of T4 recipes, before moving on...
How would that have helped? Knowing the recipe ingredients doesn't tell me how hard the items are to procure. I have no problem with the gems all changing, just that I have to spend 24 AP to find 2 gems.
Gem crafting is the hardest of all! But also the most profitable of all! 2 pearls worth more than a diamond...
If you play it right you will not have any gold issue!
The prices of gems do not justify this need to use all my AP on finding them. The pearls are great, but there is NOWHERE to even mine them. Using 24 AP has found me 2 raw agate gems and given me a drop of 1 ruby, which I can't even use at this tier for a recipe.
I chose the jeweller/stonecutter at the beginning of the game with no prior knowledge of the game, only the 'How to Play' provided by the developers. I still cannot see the reasoning behind making this aspect of the game so very difficult. I enjoy the crafting aspect of the game and feel thwarted because I cannot even find enough to begin crafting.