Where ever you are in the world, a one carat diamond weighs one carat, or .20 grammes.
A 1 carat diamond weighs approximately 200 milligrams.
Depending on the context, 1ct tw could mean one carat total weight, and 1ct TDW could mean one carat total diamond weight.Without a context, it's difficult to give you a better answer.
A 1ct diamond refers to a diamond that weighs one carat, which is equivalent to 200 milligrams (0.2 grams). The carat weight is one of the key factors in determining a diamond's value, along with cut, color, and clarity. A higher carat weight generally indicates a larger diamond, but other attributes also significantly influence its overall appearance and price.
Today on Blue Nile, you can pay between US$2,205 and US$33,844, depending on the cut and its excellence, clarity, colour and exact carat weight for a diamond of this weight.
The initials CT are often used to represent carat in a context referring to the weight of a diamond stone. For example, 1ct diamond means that the diamond stone weighs one carat.
A one carat diamond weighs one carat, or .20 grammes.
It's a ring with a 1.5 carat diamond, the numbers indicate size. 1ct is already a very large diamond for a ring.
If you think to carat this has 200 mg and is not a SI unit.The volume depends on the density of the material (V=G/d).
Regardless of the location, a diamond is valued by its cut, clarity, colour and carat weight.
Before you sell a diamond, you are best advised to have it appraised, preferably by a certified gemologist. Then you will have a better understanding of the value of the stone you're trying to sell. You can sell it privately, on consignment, to a pawn broker, or to a jeweler who will buy it.
Industrial raw diamonds are much less expensive that gem-quality raw diamonds. You can visit the site, below, and look for the raw diamond that you want to buy.
Some of your answer depends on what you ask for it. Best practices dictate that you pay a gemologist to certify your diamond according to its colour, cut, clarity and exact carat weight. In addition, the metal can be evaluated. This will help you establish a fair market value for your jewelery. Today at Blue Nile, you can purchase a diamond of this cut, of about this carat weight and pay between $3,338 and $5,342, depending on colour and its 'imperfections'. The value of the setting will be in addition, depending on the metal you choose and its purity.