A four carat diamond weights four carats.
In ounces, this stone would weigh about 0.03 or three one-hundredths of an ounce.
A 4 carat diamond ring would be ridiculously expensive. In the $100K mark I would expect. If someone is showing you their 4 carat engagement ring, it is probably cubic zirconia.
Every diamond is valued according to its cut, colour, carat weight and clarity.
If the diamond is cut, 4-point may refer to its weight, would would otherwise be expressed as .04 carat, or 4/100ths of a carat.
Every diamond is worth what someone will pay you for it. You can buy a 25 point diamond -- 25/100ths of a carat -- today at Blue Nile and spend about US$215. A four-point diamond is 4/100ths of a carat, meaning that it is very small for a diamond -- between 2 and 2.5MM at the girdle if the diamond is a round brilliant cut.
A carat, in relation to diamonds, is a unite of mass that is equal to 0.2 grams. Meaning a 4 carat diamond weighs just over .8 grams and an 8 carat diamond is 1.6 grams.
Carats are used to measure a diamond's weight. A jeweler can estimate the carat weight; a gemologist will remove the stone and weigh it, then give you a certificate that includes not only its weight, but its clarity, colour and the name and grade of the cut.
The value of a diamond depends on its cut, colour, carat weight and its clarity. A local jeweler can answer your question. You can buy a round cut diamond of this weight today from Blue Nile and spend from about US$40,000 to about US$56,000. An investment-quality diamond -- with a higher clarity rating -- starts at about US$56,000.
Cut, colour, clarity and carat weight.
A diamond has four (4) properties: color, cut, clarity, and carat weight.
The 4 C's of diamond grading include the carat weight, cut, color and clarity. When one decides to buy a 4 C's diamond, one should consider the cut of the diamond, which is how the diamond appears in terms of proportions and brightness.
Cut, clarity, carat, and color.
Carat is the weight of Gemstone and to know how much is the weight of the multicolored Tourmalines you will have to weigh them. The value of the multicolor tourmaline depends on 4 C's - Cut, Carat, Clearity and Color.