they've been like that for some time now. It takes like 17 million fs to make a 100% cd gem. Not sure on the math there, but it's gotta be close.
And everyone wants at least 1
If I recall correctly the crafting is around 20m. So to sell it and actually make a profit you have to add 15% and some more so yeah prices are normal tbh
Actually it is 15.4 million gold if you have all the mats. Cost of mats is always fluctuating. Right now on America servers, last day of trades of tomes shows 904 each, and of flawless square emeralds is 5073 each. The cheapest price to craft a radiant star emerald would be 20,572,641 gold. Again, the prices are always changing, for example the price of tomes shot up to 1524 each.
You can get average profit of about 3M per stone if you buy flawless square emeralds for 7-8k. Sometimes you can get some cheap stones and have a refund (because it will show you that you are buying them for 11k but actually they are 7-8k) but that's just gambling and you can get low income after craft.
These stones will not go over 11,5k because that's the border where it you have to pay more than you will get for the Radiant.
Crafting one radiant can take 15-20min so about 2 weeks ago when flawless square gems were cheaper you could invest and right now you could be making about 9m per hour