The phrase "carat TW" means the carat total weight. This implies there may be multiple diamonds involved in the piece of jewelry and when they are all added together, one-tenth of a carat is their combined weight.
"Carat" is just a diamond industry special word for weight of a diamond stone. One carat is equal to 200 milligrams, or in other words, a 5-carat stone weighs 1 gram. The word "carat" originates from the Greek word kerátion, which means carob beans, which were known in the ancient world for uniformity of their size and weight and were used as a measure of weight for different objects, including gemstones.
In the Far East instead of carob beans jewelers used rice grains to determine the weight of gemstones. Because of this fact, you may occasionally hear some jewelers referring to a 1-carat diamond a "four grainer," which means in the past 1 carat was equal to four grains of rice. The weight of smaller diamonds is often expressed as points, not carats. One carat is equal to 100 points. Thus, for example, a 10-point diamond has the weight of 0.1 carats.
Today on Blue Nile, you can purchase a one carat SI1 diamond and pay about US$4,759; and a one carat VVS1 diamond and pay about US$12,252.
Seventy-five/one hundredths of a carat in gemstone weight equals three quarters of 0.00705479239 ounces, which is the ounce weight of one carat. In grams, a .75 carat diamond weighs three quarters of 0.2 grams. Can you do the math?
Carats is a weight measurement for gemstones. A whole gemstone weighs what it weighs, in carats. Carats are usually numbered using 100s, meaning that a diamond may weigh just over one carat and its carat weight is listed as 1.08 carats.
Most people think carat is a size. Actually, it is not, it is a weight. Diamonds are measured in Carats. Carats are a metric weight unit with one equaling about the weight of a paper clip or .2 grams. The GIA website has a lot of information on different carat weight.
Carat is the unit of measure for diamond weight. Karat rating may be appropriate for gold and its level of purity.
Carat is a weight, so its weight is one tenth of a carat or one tenth of .20 grams.
One tenth of a carat is a small weight for a diamond -- your local jeweler may have such a diamond to sell.
A carat is a unit of weight used for gemstones. One third carat is the weight of the diamond.
A one carat diamond weighs one carat and contains one carat.
No, a one carat tanzanite gemstone and a one carat diamond are not the same size. Tanzanite is less dense than diamond, so a one carat tanzanite will typically appear larger in size compared to a one carat diamond.
A one carat diamond weighs one carat, or .20 grammes.
One carat of diamond in carat total weight equals one carat. One thousand dollars worth of diamond in total carat weight depends on the cut, colour, clarity and individual carat weight of the stones in the group.
Today on Blue Nile, you can purchase a one carat SI1 diamond and pay about US$4,759; and a one carat VVS1 diamond and pay about US$12,252.
Both versions of the description you give, 20 point and 0.2 carat mean that the stone is roughly one-fifth of a carat in weight.
A one-half carat diamond weighs 100 milligrams = 0.10 gram.
First, understand that if your 'one carat' diamond has '80 points', it may not weigh one carat. Then, take your diamond to a certified gemologist who can tell you 'how much' can be attributed to your diamond.
Where ever you are in the world, a one carat diamond weighs one carat, or .20 grammes.