These are sharp elegant radiant emerald cut, brilliant colorless sapphire. Mined and facted in Sri Lanka and Eye clean in clarity, these sapphires are natural sapphires. The radiant emerald cut gives an extra pop of brilliance that normal emerald cuts just don’t have. Really beautiful stones, and a great diamond alternative to those looking for a natural stone. Of course sapphires have a lower refractive index than diamonds do, so not really quite as brilliant, but they proudly stand on their own merits.