You will need to take it to a jeweller to have it weighed and appraised.
There are 45.52 carats on the hope diamond
45.52 CaratsThe Hope Diamond is 45.52 carats. By comparison the average engagement ring is only 0.3 carats.
A round cut diamond weighing .25 carats measures 4.1mm at the girdle.
According to Wikipedia, below, this diamond weighs "755.5 carats (151 g)."
A round cut diamond weighing .25 carats measures 4.1mm at the girdle.
This diamond could weigh about six carats if its measurement is 10mm x 10mm.
If the diamond is measured in points -- 106, you could translate this to 1.06 carats.
From Wikipedia: "The Cullinan diamond is the largest rough gem-quality diamond ever found, at 3,106.75 carats (621.35 g)."
You can read more about the Spirit of de Grisogono black diamond, below, which weighs 312.24 carats.
The answer depends on the weight of each diamond. If each diamond weighs one carat, then in total you have 275 carats.
The diamond total weight is 3.0, so the total weight of all the diamonds is 3.0 carats.
45.52 carats