Now for a little statistical gymnastics

240 gems = 30000 gold = 100 gold keys

Expected yield from 100 gold keys:

46 common

18 rare

18 minor

9 major

9 other

commons are worth 5 souls

rares are worth 10 souls

The others we can assume 3 are 20 glory each, 3 are 30 souls each, and 3 are 500 gold each.

From rewards purchases we know that 25 glory = 40 souls, so 3*20 = 60 glory is worth 96 souls.*

Using the above purchase we can associate 30000 gold with 240 gems, so 3500 = 1500 gold = 12 gems

240 gems =

46 common = 46* 5 = 230 souls

18 rare = 18*10 = 180 souls

18 minor

9 major

3 gold other = 1500 gold = 12 gems

3 soul other = 90 souls

3 glory other = 60 glory = 96 souls

Combining the soul entries:

240 gems =

596 souls

18 minor

9 major

12 gems

At the best ratio, 900 gems = 9000 souls, so 596 souls is about 60 gems

240 gems =

60 gems

18 minor

9 major

12 gems

And subtracting 72 gems from both sides

168 gems = 18 minor + 9 major

If majors are worth twice a minor (the choice I’d make), then 1 minor = 5 gems.

Alternately using the other extreme, of 5 souls per gem, the 596 souls = 119 gems:

240 gems =

119 gems

18 minor

9 major

12 gems

And subtracting 131 gems from both sides

109 gems = 18 minor + 9 major

If majors are worth twice a minor (the choice I’d make), then 1 minor = 3 gems.

So why do all this? Because I’d like to suggest a “Minor Traitstone Pack”, 1 of each type for 20 gems (between 18 if 3 gems / stone and 30 if 5 gems /stone)