You can gain the special benefit of one type of armor gem, while reaping the protective benefits of another type.
Benefit: Replace one armor gem with another armor gem of a different type. Keep the armor emulation of the majority, but gain the bonus racial power of the odd gem. You can only have one mismatched gem at a time. Switching gems takes 3 rounds of full-round actions, and is generally done outside of combat. Optionally, this feat allows you to wear decorative stones (for no armor effect) with one armor gem to gain the racial power with no armor bonus or penalties.