*Diamond counts are approximate and based on standard calibrated round brilliant melee. Actual counts may vary slightly depending on cutting proportions and manufacturing tolerances.
Diamond Size Range (mm)
Average Size
Approx. Ct / Stone
Approx. Stones / Carat
0.75–0.85
0.80 mm
0.0025 ct
400
0.85–0.95
0.90 mm
0.0030 ct
333
0.95–1.05
1.00 mm
0.0050 ct
200
1.05–1.15
1.10 mm
0.0065 ct
154
1.15–1.25
1.20 mm
0.0075 ct
133
1.25–1.35
1.30 mm
0.0115 ct
87
1.35–1.45
1.40 mm
0.0135 ct
74
1.45–1.55
1.50 mm
0.0165 ct
61
1.55–1.65
1.60 mm
0.0198 ct
51
1.65–1.75
1.70 mm
0.0220 ct
45
1.75–1.85
1.80 mm
0.0250 ct
40
1.85–1.95
1.90 mm
0.0280 ct
36
1.95–2.05
2.00 mm
0.0315 ct
32
2.05–2.15
2.10 mm
0.0330 ct
30
2.15–2.25
2.20 mm
0.0350 ct
29
2.25–2.35
2.30 mm
0.0400 ct
25
2.35–2.45
2.40 mm
0.0580 ct
17
2.45–2.55
2.50 mm
0.0600 ct
17
2.55–2.65
2.60 mm
0.0700 ct
14
2.65–2.75
2.70 mm
0.0835 ct
12
2.75–2.85
2.80 mm
0.0890 ct
11
2.85–2.95
2.90 mm
0.0960 ct
10
2.95–3.05
3.00 mm
0.1060 ct
9
3.05–3.15
3.10 mm
0.1180 ct
8
3.15–3.25
3.20 mm
0.1250 ct
8
3.25–3.35
3.30 mm
0.1340 ct
7
3.35–3.45
3.40 mm
0.1550 ct
6
3.45–3.55
3.50 mm
0.1850 ct
5
3.55–3.65
3.60 mm
0.1900 ct
5
3.65–3.75
3.70 mm
0.2020 ct
5
3.75–3.85
3.80 mm
0.2100 ct
5
3.85–3.95
3.90 mm
0.2225 ct
4
3.95–4.05
4.00 mm
0.2500 ct
4
4.05–4.15
4.10 mm
0.2600 ct
4
4.15–4.25
4.20 mm
0.3000 ct
3
4.25–4.35
4.30 mm
0.3300 ct
3
4.35–4.45
4.40 mm
0.3300 ct
3
4.45–4.55
4.50 mm
0.3500 ct
3
4.55–4.65
4.60 mm
0.3800 ct
3
4.65–4.75
4.70 mm
0.4000 ct
3
4.75–4.85
4.80 mm
0.4200 ct
2
4.85–4.95
4.90 mm
0.5000 ct
2
4.95–5.05
5.00 mm
0.5000 ct
2
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