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Gem
,→Unofficial gem stats
Another example would be a Flawed Ruby would give 2 (the attribute bonus from the Chipped Ruby) + 2 (the level of the Flawed Ruby) = 4.
A more complete formula to discover any attribute bonus simply from the level of the gem is (''n'' * (''n'' + 1) / 2) + 1, where ''n'' is the level of the gem (from 1 to 14).
But it is an intressting thought, and if this theory holds true, then a maxed out Radiant Star (level 14) [[Ruby]] (or any gem that increses an attribute, I am just using a Ruby as an example) would give +106 Strength if it was socked into something other than a weapon or a helm, which is a upgrade from the Flawless Star (level 13) [[Ruby]] that would give 92 Strength.