Tibet Emerald Diamond White Gold Engagement Ring.185

Tibet Emerald Diamond White Gold Engagement Ring.

  By Farzana Aamir 

Thus, if an emerald has no visible inclusions to the eye (assuming normal visual acuity) it is considered flawless. Stones that lack surface breaking fissures are extremely rare and therefore almost all emeralds are treated ("oiled", see below) to enhance the apparent clarity.