gemlike

From gem + -like.

gemlike (comparative more gemlike, superlative most gemlike)

1. Resembling a gem; thus, often brilliant and compact
   • 1988 June 3, Grant Pick, “A Philosopher's Life”, in Chicago Reader‎^[1]:

     His stuff was gemlike.

   • 2012, Oliver Sacks, Hallucinations:

     In his later years, Jackson published a series of twenty-one short, gemlike papers in the Lancet under the title Neurological Fragments.