The designation .30 carats indicates that the diamond weighs 30/100ths of a carat. The mm size will depend on its cut.
The size of a round 0.30 carat is width 4.12mm x length 4.1mm and the cost of this D color, VS1 clarity diamond is about $540.
An eighth of a diamond carat, if it is a round cut, measures about 3.2mm at the girdle.
A 20 carat diamond weighs 20 carats. If the diamond is a round brilliant cut, it measures about 17.6 mm at the girdle.
It refers to the weight of the diamond.
This is a relatively tiny diamond. Take it to a jeweler and ask for an evaluation.
The letters CT stand for carat, the weight measurement for diamonds. One full carat -- 1.00 CT -- weighs .02 grammes. A diamond weighing 0.010 carat equals one one-hundredth of a carat.
An eighth of a diamond carat, if it is a round cut, measures about 3.2mm at the girdle.
A 20 carat diamond weighs 20 carats. If the diamond is a round brilliant cut, it measures about 17.6 mm at the girdle.
It refers to the weight of the diamond.
Celeste 2.50 Ct Lab Diamond Emerald Cut Engagement Ring
If the diamond is a round brilliant cut, it's slightly larger than 16.3MM, which is the measurement of a diamond weighing 15 carats.
There was a 402, which was a 396, bored .030 over. No 403.
Carats refers to weight, not size. You should ask for measurements. Two round diamonds of equal carat weight are not necessarily the same size. Also the shape is a factor. A 1.80 ct pear shape diamond can look much bigger than a 1.80 ct round cut diamond.
A one carat diamond weighs one carat, or .20 grammes.
This is a relatively tiny diamond. Take it to a jeweler and ask for an evaluation.
The letters CT stand for carat, the weight measurement for diamonds. One full carat -- 1.00 CT -- weighs .02 grammes. A diamond weighing 0.010 carat equals one one-hundredth of a carat.
In the context of diamonds, the letters CT are used as a substitute for the word carat. Diamonds are weighed in carats.
It is entirely possible. the carat only tells you the size of the diamond. You will need to bring it to a professional jeweler to determine its authenticity.