Gemed or Gemmed: How To spell?

The word Gemed is misspelled against Gemmed, which is past tense of "Gem"

Gemmed has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings ge & ed which should not be misspelled with single 'M'
Wrong Spelling: ge-m-ed
Correct Spelling: ge-mm-ed
Explore spell check of Gemmed to spell without errors.