How Much Stormlight a Gem can hold

[NightFrost]

Ok so I was reading the WoK and came up with something its possible that others have noticed this but here goes. Throughout the book it seems that the smaller a gem is the less stormlight it can hold basic stuff right? However What happens if a fully infused gem is boken say in half. What happens to the stormlight? Since the two peices are smaller than the whole wouldn't they have less stormlight? My theory is that when gems are broken there is a dispersal of stormlight that gets rid of the stormlight the smaller gems cant hold. Another theory is that the level of light stays the same (which I think is unlikly but possible) so we now have two gems that have the same amount as one gem effectivly doubling the amount of light. If this is true then it would allow KR to carry more gems on their person but have more light than if they were carrying the same amount of larger gems. 

[Calderis he/him]

If the gem is broken in half, you should have a slight loss. Roughly half in each, and an amount lost because the split will never be perfectly clean. I'd imagine a puff of stormlight escaping as the gem breaks, and two pieces left, that not only can't hold quite as much, but also leak faster from an imperfect cut. 

[Walin he/him]

We may see one or more of three things, though only two are about gems specifically: a Sizgil test on squires vs Kaladin in Stormlight--holding; a Navani test on fabrials; or an Interlude ardent chapter where they explore the relationship between surface area, volume, cross section(s, depending on how rotationally symmetric the gem is), gem type, and Stormlight capacity.

There's probably a formula in-world, but the main characters who ever had an internal thought that mentioned this (Shallan internally commenting on Jasnah's cracked smokestone, etc.) didn't allude to that.