If the stone is a round brilliant cut, it could weigh about one quarter of a carat. However, only a certified gemologist can give you the true weight of the stone, and certify it for you.
A 4mm diamond measures 4mm in at least one measurement.
If the diamond is an ideal emerald cut with these measurements, the diamond may weigh about one quarter of a carat. Otherwise, you have stated the diamond's 'big' size in measurements.
The diamond weighs 112 carats, or 0.790136 ounces.
A 2 mm round diamond weighs about .03 carats, so a 1.5 mm round diamond would be smaller than .03 carats. A .01 carat diamond is about as big as a grain of sand.
A 'big diamond' is one valued high enough that you are uncomfortable wearing it in public or leaving it in a jewelry box on your dresser. The value of this diamond means that you only wear it when you feel safe, and when you're not wearing it, you keep it in a safe. 'Big' is always relative.
A 4mm diamond measures 4mm in at least one measurement.
4mm its in the question
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.
3 to 4mm
216 mm3
4mm is 0.15748032 of an inch.
As wide as 4mm on a ruler
4mm is smaller than 5mm
4mm-6mm in inches = -2
25mm - 4mm thick150mm -4mm thick50mm - 4mm thick
The Diamond as Big as the Ritz was created in 1922.