Professional Square Radiant Cut Diamond Size Chart

0.04 - 0.77 cts

SQUARE RADIANT CUT CARAT WEIGHT	SQUARE RADIANT CUT MM SIZE
0.04 - 0.05 ct.	1.90 - 2.00 mm.
0.05 - 0.06 ct.	2.10 - 2.20 mm.
0.07 - 0.08 ct.	2.30 - 2.40 mm.
0.09 - 0.10 ct.	2.50 - 2.60 mm.
0.10 - 0.12 ct.	2.70 - 2.80 mm.
0.13 - 0.15 ct.	2.90 - 3.00 mm.
0.16 - 0.18 ct.	3.10 - 3.20 mm.
0.20 - 0.22 ct.	3.20 - 3.40 mm.
0.23 - 0.26 ct.	3.50 - 3.60 mm.
0.28 - 0.31 ct.	3.70 - 3.80 mm.
0.32 - 0.35 ct.	3.90 - 4.00 mm.
0.38 - 0.40 ct.	4.10 - 4.20 mm.
0.43 - 0.47 ct.	4.30 - 4.40 mm.
0.50 - 0.55 ct.	4.50 - 4.60 mm.
0.55 - 0.58 ct.	4.70 - 4.80 mm.
0.60 - 0.68 ct.	4.90 - 5.00 mm.
0.70 - 0.77 ct.	5.00 - 5.20 mm.

Ava Diamonds

0.80 - 5.25 cts

SQUARE RADIANT CUT CARAT WEIGHT	SQUARE RADIANT CUT MM SIZE
0.80 - 0.88 ct.	5.10 - 5.30 mm.
0.90 - 0.98 ct.	5.20 - 5.40 mm.
1.00 - 1.15 ct	5.50 - 5.60 mm.
1.20 - 1.27 ct	5.70 - 6.20 mm.
1.30 - 1.45 ct	6.10 - 6.50 mm.
1.50 - 1.60 ct	6.20 - 6.60 mm.
1.65 - 1.80 ct	6.50 - 7.00 mm.
2.00 - 2.30 ct	6.90 - 7.50 mm.
2.40 - 2.60 ct	7.40 - 7.90 mm.
2.70 - 2.90 ct	7.50 - 8.20 mm.
3.00 - 3.30 ct	7.80 - 8.50 mm.
3.40 - 3.60 ct	8.30 - 8.70 mm.
3.70 -3.90 ct	8.50 - 8.90 mm.
4.00 - 4.20 ct	8.70 - 9.20 mm.
4.40 - 4.70 ct	9.10 - 9.70 mm.
5.00 - 5.25 ct	9.20 - 10.00 mm.

Ava Diamonds

What are the Ideal Proportions of a Radiant Cut Diamond?

The following guidelines are meant to assist you in establishing a formula to assist you in choosing a Rectangular Cut Diamond that offers the highest return on your investment. It is important to note however, that due to its uniqueness, the Radiant offers multiple choices. The most interesting variants are between the Classic, which focuses primarily on brilliance, vs the modern, which thanks to a larger amount of facets, adds more of a crushed ice look.

What is the Ideal Diamond Depth and Table for the Radiant Cut?

	EXCELLENT	VERY GOOD	GOOD
Table - %	61% - 69%	57% - 60% or 70% - 72%	54% - 56% or 73% - 74%
Depth - %	61% - 67%	59% - 60.9% or 67.1% - 70%	57% - 58.9% or 70.1% - 74%
Girdle	Very Thin to -	Slightly Thick	Very Thin to Thick
Culet	None	Very Small	Small

What is the Ideal Length to Width Ratio of a Radiant Cut Diamond?

When dealing with Radiant Shaped Diamonds, the length to width ratio is an extremely valuable piece of information that can reveal how square, or how rectangular the stone really is. Of course, combining it with a good old fashioned eye test is equally important. The closer the ratio is to being excellent, the more square the piece will be, and the further it get away from it, its tenancy will be to be more rectangular.

	EXCELLENT	VERY GOOD	GOOD
Length To Width Ratio	1.00 to	1.03	1.04 - 1.05