A four-carat emerald is a rare rarity in addition to being exceptionally beautiful. Compared to other gemstones, emeralds are naturally more prone to inclusions and fractures. It gets extremely harder to get a larger stone with outstanding clarity and vivid colour. The rarity of this stone greatly adds to the value of a 4 carat emerald stone. Such a stone can become a work of art, a sought-after addition to any collection, and possibly a future heirloom that will be passed down through the years in the hands of an expert jeweller.