Radiant Cut
(Square or Rectangular Cut Cornered Modified Brilliant)

Radiant cuts are square or rectangular mixed cuts with angled corners.  Henry Grossbard patented the Radiant cut in the late 1970s, as a brilliant alternative to the Emerald cut.  Radiant cuts are often utilized to maximize color in fancy colored diamonds.  The nature of this cut aids in the concentration of color, and will sometimes push a light yellow diamond in the S-Z range into the fancy yellow category.  Radiants are categorized as Cut Cornered Modified Brilliant cuts by major diamond grading labs.

Special Characteristics

Because of the angled corners, Radiant cuts lack the setting issues of sharply cornered Princess cuts, which require extra care.

Size Matters

Like Princess cuts, Radiant cuts generally look smaller from the “face up” position than other diamond shapes of the same weight as a result of their different design. 

Basic Radiant Cut Guidelines courtesy of http://www.gemappraisers.com/index.asp

Courtesy of D.S. Atlas, Accredited Gem Appraisers, © AGA 1998-2004

Radiant Cuts posted on Pricescope

 
Posted by shpritz                                                        Posted by didiamond

  
Posted by canuk-gal                                     Posted by Catmom

Threads with pictures of Radiant Cuts

http://www.pricescope.com/idealbb/view.asp?topicID=20713

http://www.pricescope.com/idealbb/view.asp?topicID=88394

Thread discussing Radiant Cut Quality

http://www.pricescope.com/idealbb/view.asp?topicID=36357