A 6mm stone would be a.75 carat diamond.
45.52 carats
Carats is a weight measurement for diamond, so your answer depends on how much your diamond weighs. Karats is a purity measurement for gold. Carrots grow in your vegetable garden.
A one carat diamond -- 1.00 carats -- weighs .20 grams. Can you do the math?
A carat of diamond weighs .20 grammes. Can you do the math?
A round cut diamond weighing .25 carats measures 4.1mm at the girdle.
A round cut diamond weighing .25 carats measures 4.1mm at the girdle.
If the diamond is measured in points -- 106, you could translate this to 1.06 carats.
A 6mm stone would be a.75 carat diamond.
If the diamond is a round cut, a stone weighing a little over 3 carats would have the 9.5mm measurement at the girdle.
If the diamond is a round brilliant cut, the 3mm measurement at the girdle indicates that the diamond weighs about 1/10th of a carat, or .10 carats.
A one-half carat diamond, in a round brilliant cut, measures about 5.2MM at the girdle.
Your answer depends on the cut you are measuring. If the gem is a round cut, the carat weight will be about .10 carats.
There are 45.52 carats on the hope diamond
If the diamond is a round brilliant cut, this measurement at the girdle indicates that it could weigh between .20 carats (3.8 mm) and .25 carats (4.1 mm). If the diamond is of a different cut, a jeweler can remove the diamond and give you the exact carat weight.
Carats indicates weight; mm indicates length and width -- the two are not necessarily compatible. However, if your diamond is a round brilliant cut diamond and its diameter at the girdle is 10mm, the diamond may be about four carats. If the cut is another shape, it may have a different carat weight.
This diamond may weigh between 1.75 (7.8MM) and 2.00 carats (8.2MM). The millimeter measurement is the diameter of the girdle, and depending on the cut, this diamond may weigh more or less than indicated, above.