Developed and patented in 1977 by Henry Grossbard the Radiant Cut combines two cutting styles into an exquisitely shaped rectangular (or square) diamond maximizes both Brilliance or Fire in a square to rectangular shape.

The Radiant diamond is the ultimate expression of Brilliance, Fire and Scintillation in a square or rectangular shape diamond.

The Radiant cut is the ideal cut for fancy color diamonds and roughly 90% of all colored diamonds are cut to this shape due to the Radiant's unique ability to maximize both Brilliance and Color Saturation.

CUT CLASSES

1A

1B

2A

2B

3A

3B

4A

4B

Ideal

Premium

International fine trade

US domestic average

below average

Table %

60-65.5%

59-68%

58-69.5%

57-72%

56-74%

53-76.%

50-78.%

>78%
<50%

Crown Height %

12-15.%

11-16%

10-16.5%

9-17.2%

8-18.0%

7-19.5%

6-20.5%

<6%
>20.5%

Girdle thickness
Word descriptions and percentages.

V. Thin to Sl. Thick
(0.4%-4.5%) or
Thin to Thick (1%-5.5%)

V.Thin to Thick(0.4%-5.5%)

Very Thin to Very Thick
(0.4% to 7.0%)

Extremely thin to
Extremely thick
(0.0% to >7.0%)

Total Depth %

60-65%

58-69%

57-74%

56-78%

53-80%

>80%
<53%

Polish/Symmetry
Not a primary determining factor.

Excellent to Good

Good or Fair

Poor to Fair

Square range
Length : Width ratios
Preferences only

0.95-1.05

Rectangular range
Length : Width ratios
Preferences Only

1.5-1.75

1.49-1.26
1.76-1.99

> Class 3 < Class 3

If you are ready to find your Ideal Radiant Cut Diamond then visit our Certified Diamond Search page to view over 10,000 GIA and AGS certified loose diamonds or browse through our premiere line of
Elite Ideal Radiant Diamonds™ which exemplify the visual perfection of the Ideal Cut.

For assistance in choosing the right diamond to meet your needs feel free to contact a professional IceStore representative during our normal business hours: Toll-free 800-276-5301 Monday-Thursday 10:00am - 6:00pm PST or e-mail anytime service@icestore.com.