Diamonds are currently fluctuating between 70k-90k for Flawless Squares, with Radiant Stars going for ~71-72 mil. I bought a few sets of 729 flawless squares and turned them into radiant stars for a bit of a profit a while ago, but prices are too high to do that right now so it\'s a loss on money until they drop a little..
Also, to the person who wrote this article (Flux, going from the name at the top): You\'re a bit inconsistent with your numbers. First you say the cost to make 1 radiant star is 3,010,000.. then elsewhere you say it\'s 3,090,000.. I\'m here to say that it\'s neither of these, and is in fact 3,060,000.
Flawless Square to Perfect Square = 5k each * 243 = 1,215,000.
Perfect Square to Radiant Square = 10k each * 81 = 810,000.
Radiant Square to Star = 20k each * 27 = 540,000.
Star to Flawless Star = 30k each * 9 = 270,000.
Flawless Star to Perfect Star = 50k each * 3 = 150,000.
Then finally Perfect Star to Radiant Star = 75k each.. since you\'re only making one, it\'s 75k.
Add all that up, and it\'s 3,060,000 gold.