I absolutely love the marquise cuts, the deep greens of those saturated emeralds which perfectly color match suggesting they’re probably from the same mine source and the original stones of this ring.
My best guesstimate is they’re Brazilian emeralds because of the saturated coloring and inclusions I noticed when inspecting them (a few tiny black dots, not visible to the naked eye.) overall clarity is pretty good. Brazilian emeralds may appear to be yellowish-green instead of bluish, due to iron.
The framing of the gold gives it a gorgeous look, making the emeralds look even brighter and bigger. Overall I think this is a great value for an emerald ring.