Rarest Items in the World rarest gem

The world's rarest gem is believed to be painite, a gem that most have never heard of. The painite is orangish or reddish brown and was first discovered in Burma in the '50s. Within the last couple of years, the source of the two original painite crystals was discovered and now a few hundred faceted stones exist. A more well-known (but still very rare) gem is the red diamond