Hi, could you update the info on gem cuts? The info that Jagid has compiled is fantastic, but it doesn't include the star cut. Here are my calculations on maximum profitability, aiming at a finished value of 3200 on the more valuable gems (figuring that the value of the other items in transfiguration will make up the other 300 to get to Tiberium).
Emerald <= 40
Oval 40 - 60*
Skip pear, skip marquis
Plumbob 60 - 83
Crystal Ball 84 - 166
Brilliant 167-300
Star Cut 300-600
Heart 600-799 (value to get a 3500 finished gem: 700)
Star Cut 800-914 (3500 finished: 875)
Brilliant 915-1066 (1000)
Sculptor's Egg 1067-1230 (1166)
Crystal Ball 1231-1391 (1346)
Marquis 1392-1599 (1521)
Plumbob 1600-1828 (1750)
Pear 1829-2133 (2000)
Oval 2134-2559 (2333)
Emerald 2560-3600 (2800)
Heart 3600+
The furthest that you can really stretch the emerald cut and still have a prayer of sneaking in under the tiberium cap is to start with a gem with an uncut value of 3920. This will give you a finished value of 4900, so unless you have some very low valued trash to fill out the display case it's better to just use the heart shape.
*On gems with a starting value of 60, the oval, pear and plumbob cuts are all equally profitable, and really you're just cutting these for Soulpeace transfiguration, so what you want to aim for on any gem with an uncut value of under 75 or so is emerald cuts on 7/8 of your cheap gems and oval cuts on the other 1/8.
