This exceptional 1.66-carat emerald cut diamond showcases the timeless elegance of step-cut faceting, with dimensions of 8.52mm x 5.70mm x 3.71mm. Graded K color and VS1 clarity by the Gemological Institute of America, this stone demonstrates excellent transparency and minimal inclusions. Authenticated by GIA report #2235790475, dated November 14, 2025, this estate diamond offers both distinguished character and certified quality. An ideal centerpiece for a custom engagement ring or fine jewelry creation, it combines classic sophistication with documented provenance.