Diamond jewellery

Round Cut

MM Size	Carat Weight
0.8	0.0025
1	0.005
1.12	0.0075
1.15	0.0067
1.25	0.01
1.3	0.01
1.5	0.015
1.75	0.02
1.8	0.025
2	0.03
2.25	0.04
2.5	0.06
2.75	0.08
3	0.11
3.25	0.14
3.5	0.17
3.75	0.21
4	0.25
4.25	0.28
4.5	0.36
4.75	0.44
5	0.46
5.25	0.56
5.5	0.66
5.75	0.76
6	0.84
6.25	0.93
6.5	1.03
6.75	1.24

MM Size	Carat Weight
7	1.28
7.25	1.49
7.5	1.67
7.75	1.75
8	2.04
8.25	2.11
8.5	2.43
8.75	2.55
9	2.75
9.25	3.05
9.5	3.35
9.75	3.61
10	3.87
10.25	4.16
10.5	4.41
10.75	4.57
11	4.91
11.25	5.49
11.5	5.85
12	6.84
12.25	7.26
12.5	7.36
12.75	7.52
13	8.51
13.5	9.53
14	10.49
15	12.89
16	16.06

Princess / Square Cut i-2

MM Size	Carat Weight
1.5	0.015
1.75	0.03
2	0.06
2.25	0.08
2.5	0.01
2.75	0.13
3	0.18
3.25	0.26
3.5	0.29
3.75	0.31
4	0.39
4.25	0.44
4.5	0.56
4.75	0.64
5	0.71
5.25	0.75
5.5	0.99
5.75	1.11
6	1.24
6.25	1.39

MM Size	Carat Weight
6.5	1.59
6.75	1.75
7	1.96
7.25	2.01
7.5	2.04
7.75	2.74
8	3.01
8.25	3.24
8.5	3.67
8.75	4.01
9	4.12
9.5	5.09
9.75	5.36
10	5.62
10.25	5.76
10.5	5.99
11	7.44
11.5	9.44
12	9.52

Cushion Cut i-2

MM Size	Carat Weight
4	0.25
4.5	0.36
5	0.46
5.25	0.56
5.5	0.66
5.75	0.76
6	0.84
6.25	0.93
6.5	1.03
6.75	1.24
7	1.28
7.5	1.67

MM Size	Carat Weight
8	2.04
8.5	2.43
9	2.75
9.5	3.35
10	3.87
10.5	4.41
11	4.91
11.5	5.85
12	6.84
13	8.51
14	10.49
15	12.89

Oval Cut

MM Size	Carat Weight
4.5 x 3.5	0.21
5 x 3	0.25
5 x 4	0.35
5.5 x 3.5	0.33
6 x 4	0.43
6.5 x 4.5	0.65
6 x 5	0.61
7 x 5	0.76
7.5 x 5.5	0.98
8 x 6	1.21
8.5 x 6.5	1.46
9 x 6	1.41
9 x 7	1.86

MM Size	Carat Weight
10 x 8	2.54
10.5 x 8.5	2.88
11 x 9	3.85
12 x 8	2.99
12 x 10	5.05
14 x 10	5.81
13 x 11	6.05
14 x 12	8.21
15 x 12	8.76
16 x 12	9.32
16 x 14	11.88
18 x 13	12.86
20 x 15	14.96

Pear Cut

MM Size	Carat Weight
3 x 2	0.13
4 x 2.5	0.18
4 x 3	0.21
5 x 3	0.25
5 x 4	0.35
6 x 4	0.39
6.5 x 4.5	0.57
7 x 5	0.71
8 x 5	0.81
8.5 x 5.5	1.08
8 x 6	1.25
9 x 6	1.33
9 x 7	1.75
10 x 6	1.71
10 x 7	1.08
10 x 8	2.46
11 x 7.50	2.61
11 x 8	3.00
12 x 7	3.12

MM Size	Carat Weight
12 x 8	3.00
12 x 9	3.44
13 x 8	2.98
14 x 8	3.47
13 x 9	4.11
14 x 9	4.25
15 x 9	5.06
14 x 10	5.41
13 x 11	5.65
15 x 10	5.75
15 x 11	7.36
16 x 9	5.86
16 x 10	6.27
16 x 12	8.99
17 x 10	6.46
18 x 11	8.14
18 x 12	9.35
18 x 13	10.21

Emerald Cut i-2

MM Size	Carat Weight
3 x 2	0.01
3.5 x 2	0.12
4 x 2	0.15
4 x 3	0.20
5 x 3	0.29
5.5 x 3.5	0.46
5.5 x 4	0.48
6 x 4	0.66
6.5 x 4.5	0.88
7 x 5	1.06
7.25 x 5.25	1.24
7.5 x 5.5	1.45
8 x 6	1.74
8.5 x 6.5	2.17

MM Size	Carat Weight
9 x 7	2.62
9.5 x 7.5	3.21
10 x 7	3.01
10 x 8	3.79
11 x 9	5.21
12 x 8	5.34
12 x 10	6.00
13 x 9	6.38
14 x 8	6.25
14 x 10	8.48
13 x 11	9.13
14 x 12	11.26
16 x 12	14.22

Asscher Cut i-2

MM Size	Carat Weight
4	0.39
4.5	0.56
5	0.71
5.5	0.99
6	1.24
6.5	1.59
7	1.96
7.5	2.04

MM Size	Carat Weight
8	3.01
8.5	3.67
9	4.12
9.5	5.09
10	5.62
11	7.44
12	9.52
13	12.66

Radiant Cut i-2

MM Size	Carat Weight
4.5 x 3.5	0.34
5 x 3	0.31
6 x 3	0.41
6 x 4	0.60
6.5 x 4.5	0.83
7 x 5	1.14
7.25 x 5.25	1.24
7.5 x 5.5	1.47
8 x 6	1.74
8.5 x 6.5	2.25
9 x 7	2.62
9.5 x 7.5	3.18
10 x 7	3.31

MM Size	Carat Weight
10 x 8	3.49
11 x 9	5.05
11.5 x 10	6.45
12 x 9	6.06
12 x 10	6.79
13 x 9	6.54
13 x 11	9.33
13.5 x 11.5	10.19
14 x 10	8.47
14 x 12	12.14
15 x 11	11.48
16 x 12	14.22

Rec Radiant i-2

RECTANGULAR RADIANT CUT CARAT WEIGHT	RECTANGULAR RADIANT CUT LENGTH MM SIZE	RECTANGULAR RADIANT CUT WIDTH MM SIZE
0.09 - 0.11 ct.	2.90 - 3.10 mm.	2.30 - 2.40 mm.
0.11 - 0.13 ct.	3.20 - 3.40 mm.	2.40 - 2.50 mm.
0.13 - 0.15 ct.	3.30 - 3.50 mm.	2.40 - 2.60 mm.
0.14 - 0.16 ct.	3.50 - 3.60 mm.	2.60 - 2.80 mm.
0.18 - 0.20 ct.	3.70 - 3.80 mm.	2.90 - 3.10 mm.
0.19 - 0.22 ct.	3.90 - 4.00 mm.	2.90 - 3.10 mm.
0.23 - 0.24 ct.	4.10 - 4.20 mm.	3.10 - 3.20 mm.
0.25 - 0.28 ct.	4.30 - 4.40 mm.	3.20 - 3.30 mm.
0.30 - 0.36 ct.	4.40 - 4.50 mm.	3.30 - 3.50 mm.
0.38 - 0.44 ct.	4.70 - 4.80 mm.	3.40 - 3.80 mm.
0.43 - 0.48 ct.	4.90 - 5.00 mm.	3.60 - 3.90 mm.
0.49 - 0.52 ct.	5.00 - 5.20 mm.	4.00 - 4.20 mm.
0.52 - 0.55 ct.	5.20 - 5.40 mm.	4.00 - 4.20 mm.
0.60 - 0.67 ct.	5.40 - 5.60 mm.	4.30 - 4.50 mm.
0.70 - 0.75 ct.	5.60 - 5.70 mm.	4.50 - 4.60 mm.
0.80 - 0.89 ct.	5.70 - 6.00 mm.	4.50 - 4.60 mm.
0.90 - 0.98 ct.	6.10 - 6.40 mm.	4.70 - 4.90 mm.

Rectangular Radiant Cut Diamond CT to MM / MM to CT

1.00 - 5.25 cts

RECTANGULAR RADIANT CUT CARAT WEIGHT	RECTANGULAR RADIANT CUT LENGTH MM SIZE	RECTANGULAR RADIANT CUT WIDTH MM SIZE
1.00 - 1.15 ct.	6.50 - 6.80 mm.	4.90 - 5.10 mm.
1.20 - 1.27 ct	6.80 - 7.30 mm.	5.40 - 5.70 mm.
1.30 - 1.45 ct	7.00 - 7.40 mm.	5.80 - 5.90 mm.
1.50 - 1.60 ct	7.30 - 7.90 mm.	5.80 - 6.20 mm.
1.65 - 1.80 ct	7.50 - 8.10 mm.	6.10 - 6.50 mm.
2.00 - 2.30 ct	8.00 - 8.60 mm.	6.40 - 6.80 mm.
2.40 - 2.60 ct	8.50 - 9.00 mm.	6.90 - 7.20 mm.
2.70 - 2.90 ct	8.90 - 9.40 mm.	7.10 - 7.30 mm.
3.00 - 3.30 ct	9.20 - 9.80 mm.	7.30 - 7.70 mm.
3.40 - 3.60 ct	9.40 - 10.00 mm.	7.60 - 7.90 mm.
3.70 -3.90 ct	9.90 - 11.00 mm.	8.00 - 8.40 mm.
4.00 - 4.20 ct	10.00 - 11.00 mm.	8.10 - 8.50 mm.
4.40 - 4.70 ct	10.70 - 11.50 mm.	8.40 - 8.70 mm.
5.00 - 5.25 ct	11.00- 11.70 mm.	8.70 - 9.10 mm.

Heart Cut

MM Size	Carat Weight
3.5	0.18
4	0.25
4.25	0.28
4.5	0.34
4.75	0.38
5	0.44
5.5	0.61
6	0.74
6.25	0.83
6.5	0.93
7	1.13
7.5	1.59

MM Size	Carat Weight
8	1.71
9	2.41
9.5	2.09
10	3.16
11	4.41
12	5.66
13	7.88
14	9.38
15	10.79
16	13.27
18	15.33

	EXCELLENT	VERY GOOD	GOOD
Table - %	53% - 63%	52% or 64% - 65%	51% or 66% - 68%
Depth - %	58% - 62%	56% - 57.9% or 62.1% - 66%	53% - 55.9% or 66.1% - 71%
Girdle	Very Thin to -	Slightly Thick	Very Thin to Thick
Culet	None	Very Small	Small

What is the Recommended Length to Width Ratio in Heart Cut Diamonds?

	EXCELLENT	VERY GOOD	GOOD
Length To Width Ratio	0.95 - 1.02	0.89 - 0.94 or 1.03 - 1.05	0.83 - 0.87 or 1.06 - 1.10

EXCELLENT

VERY GOOD

GOOD

Length To Width Ratio

0.95 - 1.02

0.89 - 0.94

1.03 - 1.05

0.83 - 0.87

1.06 - 1.10

Marquise Cut i-2

MARQUISE CUT CARAT WEIGHT	MARQUISE CUT LENGTH MM SIZE	MARQUISE CUT WIDTH MM SIZE
0.04 - 0.07 ct.	3.80 - 4.30 mm.	1.80 - 2.10 mm.
0.08 - 0.12 ct.	4.20 - 4.90 mm.	2.20 - 2.60 mm.
0.13 - 0.17 ct.	4.90 - 5.70 mm.	2.50 - 2.90 mm.
0.18 - 0.22 ct.	5.60 - 6.30 mm.	2.90 - 3.30 mm.
0.23 - 0.28 ct.	6.00 - 6.70 mm.	3.10 - 3.40 mm.
0.30 - 0.37 ct.	6.50 - 7.20 mm.	3.40 - 3.70 mm.
0.40 - 0.48 ct.	7.10 - 7.80 mm.	3.70 - 4.20 mm.
0.50 - 0.59 ct.	7.50 - 8.50 mm.	4.00 - 4.30 mm.
0.60 - 0.67 ct.	8.50 - 8.90 mm.	4.20 - 4.50 mm.
0.70 - 0.78 ct.	8.80 - 9.30 mm.	4.40 - 4.70 mm.
0.80 - 0.88 ct.	9.30 - 9.80 mm.	4.70 - 4.80 mm.
0.90 - 0.98 ct.	9.30 - 10.00 mm.	4.80 - 5.10 mm.
1.00 -1.10 ct.	9.80 - 11.00 mm.	5.00 - 5.30 mm.

MARQUISE CUT CARAT WEIGHT	MARQUISE CUT LENGTH MM SIZE	MARQUISE CUT WIDTH MM SIZE
1.20 - 1.27 ct	10.60 - 11.50 mm.	5.30 - 5.50 mm.
1.30 - 1.45 ct	11.30 - 12.00 mm.	5.60 - 5.70 mm.
1.50 - 1.60 ct	11.80 - 12.20 mm.	5.80 - 6.00 mm.
1.65 - 1.80 ct	12.30 - 12.50 mm.	6.00 - 6.20 mm.
2.00 - 2.30 ct	12.60 - 13.50 mm.	6.30 - 6.50 mm.
2.40 - 2.60 ct	13.60 - 14.40 mm.	6.60 - 7.00 mm.
2.70 - 2.90 ct	14.40 - 14.80 mm.	7.00 - 7.40 mm.
3.00 - 3.30 ct	14.60 - 15.30 mm.	7.50 - 7.70 mm.
3.40 - 3.60 ct	15.50 - 16.10 mm.	7.70 - 7.90 mm.
3.70 -3.90 ct	16.20 - 16.40 mm.	8.00 - 8.20 mm.
4.00 - 4.20 ct	16.40 - 16.80 mm.	8.20 - 8.40 mm.
4.40 - 4.70 ct	16.70 - 17.30 mm.	8.30 - 8.50 mm.
5.00 - 5.25 ct	17.40- 17.80 mm.	8.60 - 9.20 mm.

Baguette Straight Cut i-2

MM Length

1.20

1.30

1.40

1.50

1.60

1.70

1.80

1.90

2.00

2.10

2.20

2.30

2.40

2.50

2.60

2.70

2.80

2.90

3.00

3.10

2.50

2.60

0.03

0.04

0.05

0.06

0.07

0,08

0.09

0.10

0.11

0.12

0.13

0.14

0.15

2.70

2.80

0.03

0.04

0.05

0.04

0.05

0.06

0.08

0,08

0.10

0.09

0.11

0.10

0.12

0.13

0.12

0.14

0.16

2.90

3.00

0.04

0.05

0.07

0.06

0.07

0.09

0.11

0.12

0.11

0.13

0.14

0.16

0.14

0.16

3.10

3.20

0.04

0.06

0.05

0.07

0.06

0.07

0.09

0.11

0.13

0.12

0.13

0.14

0.15

0.17

0.15

0.17

3.30

3.40

0.05

0.07

0.06

0.08

0.07

0.08

0.09

0.11

0.10

0.12

0.13

0.14

0.16

0.17

0.16

0.18

3.50

3.60

0.06

0.07

0.08

0.09

0.10

0.11

0.12

0.14

0.15

0.17

0.15

0.18

0.17

0.18

3.70

3.80

0.06

0.07

0.08

0.09

0.10

0.11

0.10

0.12

0.13

0.15

0.16

0.17

0.18

0.20

0.19

0.22

3.90

4.00

0.06

0.08

0.07

0.09

0.08

0.10

0.12

0.14

0.13

0.15

0.17

0.18

0.19

0.20

0.22

0.21

0.24

4.10

4.20

0.06

0.08

0.07

0.09

0.08

0.10

0.11

0.13

0.12

0.14

0.16

0.17

0.19

0.21

0.23

0.25

4.30

4.40

0.08

0.09

0.11

0.10

0.12

0.13

0.15

0.14

0.16

0.15

0.18

0.20

0.21

0.23

0.26

0.28

4.50

4.60

0.09

0.10

0.12

0.11

0.13

0.14

0.15

0.17

0.19

0.21

0.22

0.24

0.27

0.30

4.70

4.80

0.10

0.11

0.12

0.14

0.15

0.16

0.18

0.20

0.22

0.23

0.25

0.28

0.31

4.90

5.00

0.10

0.12

0.11

0.13

0.12

0.15

0.14

0.16

0.17

0.18

0.21

0.23

0.26

0.27

0.30

0.33

5.10

5.20

0.11

0.13

0.12

0.14

0.13

0.15

0.17

0.19

0.22

0.23

0.24

0.28

0.32

0.31

0.35

5.30

5.40

0.11

0.14

0.13

0.15

0.17

0.16

0.18

0.20

0.21

0.23

0.25

0.29

0.28

0.33

0.37

5.50

5.60

0.11

0.14

0.13

0.16

0.15

0.18

0.17

0.20

0.22

0.24

0.25

0.29

0.28

0.31

0.30

0.35

0.39

Carre

CARRE CUT CARAT WEIGHT	CARRE CUT MM SIZE
0.05 - 0.06 ct,	1.90 - 2.00 mm,
0.06 - 0.07 ct,	2.10 - 2.20 mm,
0.08 - 0.09 ct,	2.30 - 2.40 mm,
0.10 - 0.12 ct,	2.50 - 2.60 mm,
0.13 - 0.14 ct,	2.70 - 2.80 mm,
0.15 - 0.17 ct,	2.90 - 3.00 mm,
0.18 - 0.21 ct,	3.10 - 3.20 mm,
0,22 - 0.25 ct,	3.30 - 3.40 mm,
0.25 - 0.29 ct,	3.50 - 3.60 mm,
0,30 - 0.36 ct,	3.70 - 3.80 mm,
0.37 - 0.42 ct,	3.90 - 4.00 mm,
0.42 - 0.47 ct,	4.10 - 4.20 mm,
0.47 - 0.53 ct,	4.30 - 4.40 mm,
0.55 - 0.60 ct,	4.50 - 4.60 mm,
0.60 - 0.65 ct,	4.70 - 4.80 mm,
0.70 - 0.75 ct,	4.90 - 5.00 mm,
0.80 - 0.85 ct,	5.10 - 5.20 mm,
0.90 - 0.98 ct,	5.30 - 5.40 mm,
1.00 - 1.05 ct,	5.50 - 5.60 mm,

Half Moon

PAIR AVERAGE TOTAL WEIGHT	HALF MOON LENGTH MM SIZE	HALF MOON WIDTH MM SIZE
0.25 - 0.27 ct tw	3.60 - 3 .80 mm.	2.60 - 2.70 mm.
0.28 - 0.32 ct tw	3.60 - 3 .80 mm.	2.80 - 3.00 mm.
0.30 - 0.35 ct tw	3.90 - 4.10 mm.	2.70 - 2.80 mm.
0.36- 0.38 ct tw	3.90 - 4.10 mm.	2.90 - 3.10 mm.
0.30 - 0.33 ct tw	4.20 - 4.10 mm.	2.70 - 2.80 mm.
0.36 - 0.40 ct tw	4.20- 4.30 mm.	2.90 - 3.10 mm.
0.36 - 0.39 ct tw	4.40 - 4.50 mm.	2.70 - 2.80 mm.
0.42 - 0.45 ct tw	4.40 - 4.50 mm.	2.90 - 3.10 mm.
0.38 - 0.43 ct tw	4.60 - 4.80 mm.	2.70 - 2.80 mm.
0.43 - 0.46 ct tw	4.60 - 4.80 mm.	2.90 - 3.10 mm.
0.39 - 0.44 ct tw	4.90 - 5.20 mm.	2.70 - 2.80 mm.
0.46 - 0.50 ct tw	4.90 - 5.20 mm.	2.90 - 3.10 mm.
0.53 - 0.57 ct tw	4.90 - 5.20 mm.	3.20 - 3.30 mm.
0.56 - 0.61 ct tw	5.40 - 5.60 mm.	3.20 - 3.40 mm.
0.70 - 0.80 ct tw	5.90 - 6.20 mm.	3.40 - 3.70 mm.
0.90 - 1.00 ct tw	5.90 - 6.20 mm.	3.80 - 4.20 mm.
0.95 - 1.20 ct tw	6.40 - 6.60 mm.	4.00 - 4.30 mm.
1.10 - 1.30 ct tw	6.80 - 7.20 mm.	4.20 - 4.50 mm.

Trapezoid

In the ever growing world of side stones, the four sided Trapezoid Cut Diamond in both its Brilliant and Step Cut variations has proven itself to be a consumer favorite. Its uniqueness stems from its parallel top and bottom sides, combined with its sides slanting inwards, A notable benefit that the Trapezoid is able to offer, is its great amount of finger coverage when used in Engagement Rings, as well as the beautiful effect it has when combined with Rectangular and Square Shaped Diamonds at the center.

The Following are Trapezoid Cut Diamond Conversion Charts From CT to MM or MM to CT available in both its Step Cut, and Brilliant Cut variations. as well as in its Trapeze Shaped form. Since Trapezoids have the choice of either an 80 Degree, Deg or 60 Degree upper corners, we've included both for each in order to provide you with the most thorough Trapezoid Cut Diamond Conversion Chart available online.

Pair Average Total Weight	Top Horizontal Length MM Size - (L-1)	Vertical Width MM Size - (W-1)	Bottom Horizontal Length MM Size - (L-2)
0.28 - 0.32 ct tw	3.60 - 3 .80 mm.	2.60 - 2.70 mm.	2.60 - 2.75 mm
0.31 - 0.35 ct tw	3.60 - 3 .80 mm.	2.80 - 3.00 mm.	2.60 - 2.75 mm
0.31 - 0.34 ct tw	3.90 - 4.10 mm.	2.70 - 2.80 mm.	2.90 - 3.00 mm
0.38- 0.44 ct tw	3.90 - 4.10 mm.	2.90 - 3.10 mm.	2.90 - 3.00 mm
0.32 - 0.37 ct tw	4.10 - 4.20 mm.	2.70 - 2.80 mm.	3.10 - 3.20 mm
0.40 - 0.44 ct tw	4.20- 4.30 mm.	2.90 - 3.10 mm.	3.20 - 3.45 mm
0.38 - 0.44 ct tw	4.40 - 4.50 mm.	2.70 - 2.80 mm.	3.30 - 3.50 mm
0.43 - 0.47 ct tw	4.40 - 4.50 mm.	2.90 - 3.10 mm.	3.30 - 3.50 mm
0.40 - 0.44 ct tw	4.60 - 4.80 mm.	2.70 - 2.80 mm.	3.60 - 3.90 mm
0.44 - 0.47 ct tw	4.60 - 4.80 mm.	2.90 - 3.10 mm.	3.60 - 3.90 mm
0.40 - 0.45 ct tw	4.90 - 5.20 mm.	2.70 - 2.80 mm.	3.90 - 4.10 mm
0.50 - 0.55 ct tw	4.90 - 5.20 mm.	2.90 - 3.10 mm.	3.90 - 4.10 mm
0.58 - 0.64 ct tw	4.90- 5.20 mm.	3.20 - 3.30 mm.	3.95 - 4.20 mm
0.55 - 0.64 ct tw	5.40 - 5.60 mm.	2.90 - 3.10 mm.	4.30 - 4.50 mm
0.64 - 0.75 ct tw	5.40 - 5.60 mm.	3.20 - 3.40 mm.	4.00 - 4.40 mm
0.58 - 0.75 ct tw	5.90 - 6.20 mm.	2.90 - 3.10 mm.	4.70 - 5.00 mm
0.75 - 0.85 ct tw	5.90 - 6.20 mm.	3.30 - 3.50 mm.	4.90 - 5.10 mm
0.80 - 1.00 ct tw	5.90 - 6.20 mm.	3.60 - 4.00 mm.	4.50 - 4.80 mm
0.85 - 1.10 ct tw	6.40 - 6.60 mm.	3.80 - 4.20 mm.	4.80 - 5.20 mm.
0.97 - 1.20 ct tw	6.40 - 6.60 mm.	4.00 - 4.30 mm.	4.80 - 5.20 mm.
1.10 - 1.30 ct tw	6.80 - 7.20 mm.	4.00 - 4.30 mm.	5.00 - 5.50 mm.

Trapezoid Brilliant Cut Diamond Pairs Conversion Chart 0.22 - 2.60 ctw With Sharper Angled Corners of 60 °

Pair Average Total Weight	Top Horizontal Length MM Size - (L-1)	Vertical Width MM Size - (W-1)	Bottom Horizontal Length MM Size - (L-2)
0.22 - 0.26 ct tw	3.70 - 4.00 mm.	2.50 - 2.70 mm.	1.70 - 1.80 mm
0.26 - 0.30 ct tw	4.00 - 4.50 mm.	2.70 - 3.00 mm.	1.85 - 2.00 mm
0.30 - 0.34 ct tw	4.20 - 4.60 mm.	2.85 - 3.15 mm.	1.90 - 2.10 mm
0.36 - 0.38 ct tw	4.40 - 4.70 mm.	3.00 - 3.20 mm.	2.00 - 2.15 mm
0.38 - 0.42 ct tw	4.70 - 4.90 mm.	3.15 - 3.30 mm.	2.15 - 2.25 mm
0.42 - 0.46 ct tw	4.90 - 5.20 mm.	3.30 - 3.50 mm.	2.25 - 2.40 mm
0.48 - 0.50 ct tw	5.20 - 5.50 mm.	3.50 - 3.75 mm.	2.40 - 2.50 mm
0.52 - 0.58 ct tw	5.50 - 5.70 mm.	3.75 - 3.85 mm.	2.50 - 2.60 mm
0.62 - 0.66 ct tw	5.60 -5.90 mm.	3.80 - 4.00 mm.	2.60 - 2.70 mm
0.70 - 0.76 ct tw	5.90 - 6.30 mm.	4.00 - 4.25 mm.	2.70 - 2.90 mm
0.78 - 0.80 ct tw	6.20 - 6.50 mm.	4.10 - 4.30 mm.	2.85- 3.00 mm
0.84 - 0.92 ct tw	6.40 - 6.70 mm.	4.15 - 4.40 mm.	2.95 - 3.10 mm
0.96 - 1.02 ct tw	6.60 - 6.80 mm.	4.15 - 4.40 mm.	3.00 - 3.15 mm
1.06 - 1.14 ct tw	6.80 - 7.30 mm.	4.25- 4.60 mm.	3.15 - 3.35 mm
1.24 - 1.38 ct tw	7.20 - 7.50 mm.	4.55 - 4.75 mm.	3.30 - 3.45 mm.
1.40 - 1.54 ct tw	7.40 - 7.70 mm.	4.70 - 4.85 mm.	3.40 - 3.55 mm.
1.58 - 1.72 ct tw	7.60 - 8.10 mm.	4.75 - 5.10mm.	3.50 - 3.70 mm.
1.76 - 2.00 ct tw	8.00 - 8.70 mm.	5.00 - 5.50 mm.	3.70 - 4.00 mm.
2.10 - 2.60 ct tw	8.40 - 9.40 mm	5.25 - 5.80 mm.	3.90 - 4.30 mm.

Trapezoid Step Cut Diamond Pairs Conversion Chart 0.29 - 1.40 ctw

Pair Average Total Weight	Top Horizontal Length MM Size - (L-1)	Vertical Width MM Size - (W-1)	Bottom Horizontal Length MM Size - (L-2)
0.29 - 0.33 ct tw	3.60 - 3 .80 mm.	2.60 - 2.70 mm.	2.60 - 2.75 mm
0.32- 0.36 ct tw	3.60 - 3 .80 mm.	2.80 - 3.00 mm.	2.60 - 2.75 mm
0.32 - 0.35 ct tw	3.90 - 4.10 mm.	2.70 - 2.80 mm.	2.90 - 3.00 mm
0.39- 0.45 ct tw	3.90 - 4.10 mm.	2.90 - 3.10 mm.	2.90 - 3.00 mm
0.33 - 0.38 ct tw	4.10 - 4.20 mm.	2.70 - 2.80 mm.	3.10 - 3.20 mm
0.41- 0.46 ct tw	4.20- 4.30 mm.	2.90 - 3.10 mm.	3.20 - 3.45 mm
0.39 - 0.45 ct tw	4.40 - 4.50 mm.	2.70 - 2.80 mm.	3.30 - 3.50 mm
0.44 - 0.48 ct tw	4.40 - 4.50 mm.	2.90 - 3.10 mm.	3.30 - 3.50 mm
0.41 - 0.45 ct tw	4.60 - 4.80 mm.	2.70 - 2.80 mm.	3.60 - 3.90 mm
0.45 - 0.49 ct tw	4.60 - 4.80 mm.	2.90 - 3.10 mm.	3.60 - 3.90 mm
0.41 - 0.47 ct tw	4.90 - 5.20 mm.	2.70 - 2.80 mm.	3.90 - 4.10 mm
0.51 - 0.57 ct tw	4.90 - 5.20 mm.	2.90 - 3.10 mm.	3.90 - 4.10 mm
0.59 - 0.66 ct tw	4.90- 5.20 mm.	3.20 - 3.30 mm.	3.95 - 4.20 mm
0.57 - 0.67 ct tw	5.40 - 5.60 mm.	2.90 - 3.10 mm.	4.30 - 4.50 mm
0.66 - 0.77 ct tw	5.40 - 5.60 mm.	3.20 - 3.40 mm.	4.00 - 4.40 mm
0.60 - 0.78 ct tw	5.90 - 6.20 mm.	2.90 - 3.10 mm.	4.70 - 5.00 mm
0.77 - 0.88 ct tw	5.90 - 6.20 mm.	3.30 - 3.50 mm.	4.90 - 5.10 mm
0.80 - 1.10 ct tw	5.90 - 6.20 mm.	3.60 - 4.00 mm.	4.50 - 4.80 mm
0.90 - 1.15 ct tw	6.40 - 6.60 mm.	3.80 - 4.20 mm.	4.80 - 5.20 mm.
1.00 - 1.25 ct tw	6.40 - 6.60 mm.	4.00 - 4.30 mm.	4.80 - 5.20 mm.
1.15 - 1.40 ct tw	6.80 - 7.20 mm.	4.00 - 4.30 mm.	5.00 - 5.50 mm.

Trapezoid Step Cut Diamond Pairs Conversion Chart 0.22 - 2.60 ctw

Pair Average Total Weight	Top Horizontal Length MM Size - (L-1)	Vertical Width MM Size - (W-1)	Bottom Horizontal Length MM Size - (L-2)
0.22 - 0.26 ct tw	3.70 - 4.00 mm.	2.50 - 2.70 mm.	1.70 - 1.80 mm
0.26 - 0.30 ct tw	4.00 - 4.50 mm.	2.70 - 3.00 mm.	1.85 - 2.00 mm
0.30 - 0.34 ct tw	4.20 - 4.60 mm.	2.85 - 3.15 mm.	1.90 - 2.10 mm
0.36 - 0.38 ct tw	4.40 - 4.70 mm.	3.00 - 3.20 mm.	2.00 - 2.15 mm
0.38 - 0.42 ct tw	4.70 - 4.90 mm.	3.15 - 3.30 mm.	2.15 - 2.25 mm
0.42 - 0.46 ct tw	4.90 - 5.20 mm.	3.30 - 3.50 mm.	2.25 - 2.40 mm
0.48 - 0.50 ct tw	5.20 - 5.50 mm.	3.50 - 3.75 mm.	2.40 - 2.50 mm
0.52 - 0.58 ct tw	5.50 - 5.70 mm.	3.75 - 3.85 mm.	2.50 - 2.60 mm
0.62 - 0.66 ct tw	5.60 -5.90 mm.	3.80 - 4.00 mm.	2.60 - 2.70 mm
0.70 - 0.76 ct tw	5.90 - 6.30 mm.	4.00 - 4.25 mm.	2.70 - 2.90 mm
0.78 - 0.80 ct tw	6.20 - 6.50 mm.	4.10 - 4.30 mm.	2.85- 3.00 mm
0.84 - 0.92 ct tw	6.40 - 6.70 mm.	4.15 - 4.40 mm.	2.95 - 3.10 mm
0.96 - 1.02 ct tw	6.60 - 6.80 mm.	4.15 - 4.40 mm.	3.00 - 3.15 mm
1.06 - 1.14 ct tw	6.80 - 7.30 mm.	4.25- 4.60 mm.	3.15 - 3.35 mm
1.24 - 1.38 ct tw	7.20 - 7.50 mm.	4.55 - 4.75 mm.	3.30 - 3.45 mm.
1.40 - 1.54 ct tw	7.40 - 7.70 mm.	4.70 - 4.85 mm.	3.40 - 3.55 mm.
1.58 - 1.72 ct tw	7.60 - 8.10 mm.	4.75 - 5.10mm.	3.50 - 3.70 mm.
1.76 - 2.00 ct tw	8.00 - 8.70 mm.	5.00 - 5.50 mm.	3.70 - 4.00 mm.
2.10 - 2.60 ct tw	8.40 - 9.40 mm	5.25 - 5.80 mm.	3.90 - 4.30 mm.

Bullet

MM Length

2.40

2.50

2.60

2.70

2.80

2.90

3.00

3.10

3.90

4.00

0.15

0.16

0.17

0.18

0.19

0.18

0.21

4.10

4.20

0.15

0.17

0.18

0.20

0.22

4.30

4.40

0.16

0.18

0.20

0.23

0.25

4.50

4.60

0.17

0.18

0.19

0.21

0.24

0.26

4.70

4.80

0.18

0.19

0.20

0.22

0.25

0.27

4.90

5.00

0.18

0.20

0.23

0.24

0.26

0.29

5.10

5.20

0.19

0.20

0.21

0.25

0.28

0.27

0.31

5.30

5.40

0.20

0.22

0.26

0.25

0.29

0.33

5.50

5.60

0.22

0.26

0.25

0.27

0.26

0.31

0.34

Tapered Baguette i-2

MM Size	Carat Weight
2 x 1.5 x 1	0.025
2.5 x 1.5 x 1	0.035
2.5 x 1.75 x 1	0.04
3 x 1.5 x 1	0.05
3 x 1.75 x 1.25	0.055
3 x 1.75 x 1.3	0.055
3 x 1.75 x 1.5	0.055
3 x 2 x 1	0.06
3 x 2 x 1.25	0.065
3 x 2 x 1.5	0.07
3 x 2 x 1.75	0.075
3 x 2.5 x 2	0.08
3.25 x 1.75 x 1	0.07
3.25 x 1.75 x 1.25	0.05
3.5 x 1.25 x 1	0.04
3.5 x 1.5 x 1	0.05
3.5 x 1.5 x 1.25	0.055
3.5 x 1.7 x 1.3	0.055
3.5 x 1.75 x 1	0.06
3.5 x 1.75 x 1.25	0.07
3.5 x 1.75 x 1.3	0.065
3.5 x 2 x 1.25	0.08
3.5 x 2 x 1.5	0.09
3.5 x 2.5 x 2	0.09
3.75 x 2 x 1.25	0.08
4 x 1.5 x 1	0.07
4 x 1.5 x 1.2	0.08
4 x 1.75 x 1.25	0.08
4 x 2 x 1.5	0.01
4 x 2.5 x 1.5	0.12
4 x 2.5 x 2	0.21
4 x 3 x 2	0.21
4.25 x 2 x 1.25	0.11

MM Size	Carat Weight
4.25 x 2 x 1.5	0.13
4.25 x 2.5 x 1.25	0.13
4.25 x 2.5 x 1.5	0.135
4.5 x 1.75 x 1.25	0.15
4.5 x 2 x 1.5	0.12
4.5 x 2.3 x 1.8	0.16
4.5 x 2.5 x 2	0.15
4.5 x 2.75 x 1.75	0.15
4.5 x 3 x 2	0.16
4.5 x 3 x 2.5	0.16
4.75 x 2.5 x 1.5	0.15
4.75 x 3 x 2	0.18
5 x 2 x 1	0.14
5 x 2 x 1.25	0.15
5 x 2 x 1.5	0.15
5 x 2.3 x 1.8	0.16
5 x 2.5 x 1.5	0.02
5 x 2.5 x 2	0.21
5 x 2.75 x 2	0.21
5 x 3 x 2	0.25
5 x 3.5 x 2	0.26
5 x 4 x 3.5	0.28
5.5 x 2 x 1.5	0.18
5.5 x 2.5 x 1.75	0.23
5.5 x 2.5 x 2	0.23
5.5 x 3 x 2	0.26
5.5 x 3 x 2.25	0.26
5.5 x 4 x 2.5	0.28
6 x 2 x 1.5	0.03
6 x 2.5 x 1.5	0.03
6 x 3 x 2	0.03
6.5 x 2.5 x 2	0.03
6.5 x 3 x 2	0.32

Shield

PAIR AVERAGE TOTALE WEIGHT	LENGTH MM SIZE	WIDTH MM SIZE
0.13 - 0.17 ct tw	3.60 - 4.10 mm.	3.20 - 2.90 mm.
0.18 - 0.22 ct tw	4.20 - 4 .40 mm.	3.60 - 4.00 mm.
0.23 - 0.27 ct tw	4.30 - 5.10 mm.	3.90 - 4.80 mm.
0.28 - 0.37 ct tw	4.80 - 5.60 mm.	4.20 - 5.00 mm.
0.38 - 0.47 ct tw	5.20 - 5.80 mm.	4.80 - 5.30 mm.
0.48 - 0.59 ct tw	5.40- 6.00 mm.	5.00 - 5.80 mm.
0.60 - 0.68 ct tw	5.80 - 6.30 mm.	5.40- 6.00 mm.
0.70- 0.78 ct tw	6.20- 6.80 mm.	6.10 - 6.80 mm.
0.80 - 0.89 ct tw	6.70 - 7.40 mm.	6.50 - 7.20 mm.
0.90 - 0.98 ct tw	7.20 - 7.80 mm.	6.30 - 7.30 mm.
1.00 - 1.10 ct tw	7.60 - 8.50 mm.	6.70 - 7.60 mm.
1.18 - 1.45 ct tw	8.00 - 8.90 mm.	7.20 - 8.10 mm.

Trilliont Cut i-2

MM Size	Carat Weight
3	0.12
3.5	0.16
3.75	0.19
4	0.23
4.25	0.27
4.5	0.31
4.75	0.37
5	0.42
5.25	0.49
5.5	0.55
5.75	0.64
6	0.70

MM Size	Carat Weight
6.25	0.75
6.5	0.91
6.75	0.98
7	1.01
7.5	1.21
8	1.75
9	2.35
11	3.66
12	4.9
13	6.42
15	9.00

Triangle Cut

MM Size	Carat Weight
2.5	0.08
3	0.12
3.5	0.18
4	0.25
4.25	0.32
4.5	0.37
4.75	0.42
5	0.45
5.25	0.53
5.5	0.66
5.75	0.71
6	0.76
6.25	0.86
6.5	0.94
6.75	1.02

MM Size	Carat Weight
7	1.11
7.25	1.32
7.5	1.45
7.75	1.69
8	1.79
8.25	1.86
9	2.15
9.25	2.54
9.75	3.25
10	3.52
11	4.74
12	6.03
13	8.12
14	9.83

Calf

CARAT WEIGHT	TOP HORIZONTAL LENGTH MM SIZE	VERTICAL WIDTH MM SIZE
0.12 - 0,14 ct,	3.50 - 3.80 mm,	3.20 - 3.40 mm,
0.14 - 0.16 ct,	3.80 - 4.30 mm,	3.40 - 3.80 mm,
0.16 - 0.18 ct,	4.00 - 4.40 mm,	3.60 - 3.90 mm,
0.19 - 0.20 ct,	4.20 - 4.50 mm,	3.70 - 4.00 mm,
0.21 - 0.23 ct,	4.40 - 4.70 mm,	4.00 - 4.20 mm,
0.23 - 0.25 ct,	4.60 - 5.00 mm,	4.20 - 4.40 mm,
0.26 - 0.27 ct,	5.00 - 5.20 mm,	4.40 - 4.70 mm,
0.29 - 0.31 ct,	5.20 - 5.40 mm,	4.70 - 4.90 mm,
0.33 - 0.36 ct,	5.30 -5.60 mm,	4.80 -5.00 mm,
0.38 - 0.41 ct,	5.60 - 6.00 mm,	5.00 - 5.40 mm,
0.42 - 0.44 ct,	5.90 - 6.20 mm,	5.30 - 5.50 mm,
0.46 - 0.49 ct,	6.10 - 6.30 mm,	5.50 - 5.70 mm,
0.52 - 0.55 ct,	6.30 - 6.40 mm,	5.70 - 5.80 mm,
0.57 - 0.62 ct,	6.40 - 6.90 mm,	6.40 - 6.90 mm,
0.67 - 0.74 ct,	6.90 - 7.10 mm,	6.80 - 7.10 mm,
0.76 - 0.83 ct,	7.00 - 7.30 mm,	7.00 - 7.30 mm,
0.86 - 0.93 ct,	7.20 - 7.70 mm,	7.20 - 7.70 mm,
0.95 - 1.09 ct,	7.60 - 8.20 mm,	7.60 - 8.25 mm,
1.12 - 1.38 ct,	8.00 - 8.90 mm,	8.00 - 8.90 mm,

Hexagon

HEXAGONAL CARAT WEIGHT	HEXAGONAL POINT TO POINT MM SIZE	HEXAGONAL BASE TO BASE MM SIZE
0.30 - 0.35 ct.	4.70 - 4.80 mm.	4.00 - 4.20 mm
0.40 - 0.45 ct.	5.00 - 5.20 mm.	4.40 - 4.50 mm.
0.50 - 0.55 ct.	5.40 - 5.60 mm.	4.70 - 4.90 mm.
0.60 - 0.65 ct.	5.70 - 5.90 mm.	4.90 - 5.20 mm.
0.70 - 0.75 ct.	6.10 - 6.30 mm.	5.20 - 5.40 mm.
0.80 - 0.85 ct.	6.40 - 6.50 mm.	5.50 - 5.60 mm.
0.90 - 0.95 ct.	6.60 - 6.70 mm.	5.70 - 5.80 mm.
1.00 - 1.10 ct.	6.80 - 7.00 mm.	5.90- 6.20 mm.
1.20 - 1.40 ct.	7.10 - 7.30 mm.	6.10 - 6.40 mm.
1.50 - 1.60 ct.	7.40 - 7.60 mm.	6.30 - 6.50 mm.
1.70 - 1.80 ct.	7.60 - 7.80 mm.	7.30 - 7.50 mm.
2.00 - 2.20 ct.	8.90- 9.40 mm.	7.60 - 8.00 mm.