'Flawless' and 'Emerald' are not two words you hear together all that often. The fundamental nature of the formation of emeralds GENERALLY leads to very rich green color, as well as at least some degree of fracturing, or other mineral inclusion.
weight: 0.77 ct measures: 6.5mm x 4.5mm clarity: flawless
The emeralds from Nigeria are far lighter in color, compared to their colombian cousins, but this has allowed the material to remain FREE OFF FRACTURES OR INCLUSIONS!!
If you don't mind the lighter color (a very nice sea-foam green color, sought after in most other gem categories), then you can be rewarded with an honest to goodness AFFORDABLE flawless emerald.
At 0.77ct, this stone would make a proud center stone for a ring, but would look great on a pendant as well. I personally would recommend yellow gold, as I think it matches with the carribbean color quite nicely.