Global Gemology - Rare Gems & Jewels
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DIAMOND MELEE WEIGHT CHARTS

Picture

Rounds

MM
CARAT WEIGHT
1.00
0.005 ct.
1.30
0.01 ct.
1.50
0.015 ct.
1.70
0.02 ct.
1.80
0.025 ct.
2.00
0.03 ct.
2.10
0.035 ct.
2.20
0.04 ct.
2.40
0.05 ct.
2.50
0.06 ct.
2.70
0.07 ct.
2.80
0.08 ct.
2.90
0.09 ct.
3.00
0.10 ct.
3.10
0.11 ct.
3.20
0.12 ct.
3.30
0.14 ct.
3.40
0.15 ct.
3.50
0.16 ct.
3.60
0.17 ct.
3.70
0.18 ct.
3.80
0.20 ct.
3.90
0.22 ct.
4.00
0.23 ct.
4.10
0.25 ct.
4.20
0.27 ct.
4.40
0.31 ct.
4.60
0.36 ct.
4.80
0.40 ct.
5.00
0.46 ct.
5.15
0.50 ct.
5.20
0.51 ct.
5.40
0.58 ct.
5.60
0.64 ct.
5.80
0.71 ct.
5.90
0.75 ct.
6.00
0.79 ct.
6.50
1.00 ct.
6.60
1.05 ct.
7.80
1.15 ct.
6.99
1.25 ct.
7.00
1.26 ct.
7.20
1.37 ct.
7.40
1.48 ct.
7.42
1.50 ct.
7.60
1.61 ct.
7.80
1.74 ct.
7.82
1.75 ct.
8.00
1.87 ct.
8.18
2.00 ct.
8.20
2.02 ct.
8.40
2.17 ct.
8.50
2.25 ct.
8.70
2.41 ct.
8.81
2.50 ct.
9.00
2.67 ct.
9.20
2.85 ct.
9.36
3.00 ct.

Baguettes

MM
CARAT WEIGHT
2.00 x 1.00
0.02 ct.
2.00 x 1.50
0.04 ct.
2.00 x 1.75
0.04 ct.
2.25 x 1.75
0.04 ct.
2.25 x 2.00
0.045 ct.
2.50 x 1.00
0.045 ct.
2.50 x 1.25
0.047 ct.
2.50 x 1.50
0.05 ct.
2.50 x 1.75
0.055 ct.
2.50 x 2.00
0.055 ct.
2.75 x 1.50
0.055 ct.
2.75 x 1.75
0.06 ct.
2.75 x 2.00
0.05 ct.
2.75 x 2.50
0.065 ct.
3.00 x 1.00
0.05 ct.
3.00 x 1.25
0.055 ct.
3.00 x 1.50
0.06 ct.
3.00 x 1.75
0.08 ct.
3.00 x 2.00
0.10 ct.
3.00 x 2.50
0.13 ct.
3.25 x 1.25
0.06 ct.
3.25 x 1.50
0.065 ct.
3.25 x 1.75
0.08 ct.
3.25 x 2.50
0.14 ct.
3.50 x 1.00
0.065 ct.
3.50 x 1.25
0.07 ct.
3.50 x 1.50
0.07 ct.
3.50 x 1.75
0.08 ct.
3.50 x 2.00
0.13 ct.
3.50 x 2.50
0.15 ct.
3.50 x 3.00
0.15 ct.
3.75 x 1.50
0.14 ct.
3.75 x 2.00
0.145 ct.
4.00 x 1.25
0.075 ct.
4.00 x 1.50
0.08 ct.
4.00 x 1.75
0.11 ct.
4.00 x 2.00
0.14 ct.
4.00 x 3.00
0.20 ct.
4.50 x 1.50
0.10 ct.
4.50 x 1.75
0.14 ct.
4.50 x 2.00
0.17 ct.
4.50 x 2.50
0.20 ct.
4.50 x 3.00
0.285 ct.
4.50 x 3.50
0.30 ct.
4.75 x 1.50
0.27 ct.
4.75 x 2.00
0.28 ct.
5.00 x 1.50
0.14 ct.
5.00 x 1.75
0.15 ct.
5.00 x 2.00
0.19 ct.
5.00 x 2.50
0.24 ct.
5.00 x 3.00
0.30 ct.
5.00 x 3.50
0.33 ct.
5.00 x 4.00
0.40 ct.
5.50 x 1.75
0.16 ct.
5.50 x 2.00
0.18 ct.
5.50 x 2.50
0.23 ct.
5.50 x 3.00
0.30 ct.
5.50 x 3.50
0.33 ct.
​6.00 x 1.75
0.28 ct.
6.00 x 2.00
0.30 ct.
6.00 x 2.50
0.33 ct.
6.00 x 3.00
0.40 ct.
  • HOME
  • ABOUT
  • SHOP
  • SERVICES
    • APPRAISALS
    • EXPERT WITNESS TESTIMONY
    • SELL YOUR JEWELRY
  • GEMOLOGY
    • GEM ENCYCLOPEDIA
    • THE ART OF GEMOLOGY
  • JEWELRY EDUCATION
    • DIAMOND FACTS
    • JEWELER DIRECTORY
    • JEWELRY PERIODS
    • POCKET WATCHES
    • NATIVE AMERICAN JEWELRY
  • GLOSSARY