It turns out Blizzard decided to make some epic gems available through PVP after all. These are the pre-cut BOP gem's that are available for 750 conquest each:
Blue +63 Spell Pen
Green +25 Hit +25 Resil
Green +32 Spell Pen +25 Mastery
Green +25 Crit +32 Spell Pen
Green +25 Haste +32 Spell Pen
Green +25 Resil +37 Stam
Green +25 Spirit +25 Resil
Green +32 Spell Pen +25 Resil
Orange +25 Agility +25 Resil
Orange +25 Strength +25 Resil
Orange +25 Parry +25 Resil
Orange +25 Expertise +25 Resil
Orange +25 Intellect +25 Resil
Purple +25 Intellect +32 Spell Pen
Yellow +50 Resil