The emerald cut is sometimes referred to as "the most revealing cut".
Emerald cuts are rectangular shaped with cut corners and a step cutting style. Due to its step cut facet arrangement, imperfections within an emerald cut diamond are more recognizable than those within a brilliant cut diamond. For this reason, it's important to consider higher clarity diamonds when shopping for emerald cuts.
The first emerald cut diamonds date back to the 1500s.
Photo courtesy of Scott Papper, GIA GG, AJP, CMA (NAJA)