Hydrothermal synthetic Emerald rough - the good stuff! Wickedly good green.
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Mostly surface blemishes⁠⁠- the tapered edges sometimes have wire embedded from the growing process and there will occasionally be inclusions around the wire. The 'beef' of the pieces are all solid cutting rough

The photo of the finished gemstone was cut from this exact rough 

21.580 grams / 107.9 carats / 80 x 22 x 5.75 mm