Okay so I logged onto the PTR today and decided that I would prospect 100 stacks of Titanium Ore to see what the result would be. 100 stacks is a pretty fair idea as it gives 400 prospects so here are the results:Cardinal Ruby 19 (4.75%)
Kings Amber 17 (4.25%)
Eye of Zul 10 (2.5%)
Majestic Zircon 20 (5.00%)
Ametrine 21 (5.25%)
Dreadstone 20 (5.00%)
Titanium Dust 266 (66.50%)
Scarlet Ruby 23 (5.75%), Bloodstone 94 (23.50%)
Autumn's Glow 24 (6.00%), Sun Crystal 109 (27.25%)
Forest Emerald 15 (3.75%), Dark Jade 104 (26.00%)
Sky Sapphire 14 (3.50%), Chalcedony 105 (26.25%)
Twilight Opal 16 (4.00%), Shadow Crystal 104 (26.00%)
Monarch Topaz 10 (2.50%), Huge Citrine 83 (20.75%)
Note that the sum of the percentages is greater than 100% as there are multiple procs from one prospect. So it definitely appears that proccing epic gems is in the same ballpark as proccing rare gems in Saronite Ore. Our sample shows that there is a 26.75% chance to proc an epic gem. As a rule of thumb, this is like proccing an epic gem every stack of Titanium Ore.
The dust is also pretty nice, 10 dust is needed for a repeatable hand in quest for a JC token. So 266 dust would yield 26 JC tokens. The epic JC patterns need 5 JC tokens so our sample was enough to earn 5 patterns.
Now lets look at Alchemy which has flown under the radar a bit as alchemists can also make epic gems via transmutes.
**This has changed since the last build on 30/6/09**
3 Sky Sapphire = 1 Majestic Zircon
3 Forest Emerald = 1 Eye of Zul
3 Twilight Opal = 1 Dreadstone
1 Majestic Zircon + 2 Eternal Life = 1 King's Amber
1 Majestic Zircon + 2 Eternal Shadow = 1 Ametrine
3 Eye of Zul = 1 Cardinal Ruby (available through a quest to do five transmutes.)
I tried out the transmutes mainly the Sky Sapphire, Forest Emerald and the Twilight Opal ones (I didn't bring any Eternal Shadows or Lifes with me to the PTR ao I couldn't do those). The result was amazing though, my Alchemist is Level 70 450 transmute spec, and she procced multiple gems (had a two-proc with Eye of Zul twice out of the five transmutes).
Since she has 450 skill, I think that lets her do the Cardinal Ruby transmute as well, so with 17 Eye of Zuls I was able to do five transmutes. Again she procced double Cardinal Rubies twice! Quick tip though, if you are at 450 alchemy, make sure you pick up the quest before you do the transmutes.
Note that there is currently no CD on the gem transmutes on the PTR. To be honest I don't expect there to be otherwise rare gems will be totally worthless again just like in tbc. Looks like Alchs are gonna have a pretty sweet ride this patch.
So after my initial stack of 100 titanium ore, and with some help from my transmute spec alc my total epic gem return was:
Cardinal Ruby 26
Kings Amber 17
Eye of Zul 2
Majestic Zircon 25
Ametrine 21
Dreadstone 25
Bring on the patch!