Welcome to Distinctive Gem Inc.!
The Distinctive Radiant is cut to mimic some of the best optics we've found in the radiant shape. Distinctive Radiants are cut to 1.26:1 ratios for a nice full body so if you're trying to figure out the measurements of the width by the length below simply divide the length by 1.26. Ie. A 10mm long radiant will have a width of about 7.94mm wide, etc.