What is a Poor cut diamond?

A Poor cut diamond is a diamond with a specific cut rating from the Gemological Institute of America (GIA). Cut refers to the arrangement of facets on a diamond, and GIA rates cuts on a scale from Excellent to Poor. The Poor cut will have little to no sparkle or brilliance, usually due to imperfections in the placement of its facets. Shop a diverse assortment of diamond jewelry on 1stDibs.