You can calculate the total carat weight by adding the individual carat weight of each stone. Without a carat weight of each of your 15 stones, it is not possible to devise a sum total carat weight.
National Geographic published a cover photograph, for their story on cutting and polishing diamonds in India, which showed diamonds small enough to fit into the seed well on the side of a strawberry. These diamonds are probably smaller than .01 carats. A 'one cent' diamond weighs one-one-hundredth of a carat -- .01: its mm size will depend on its cut.
If a .03 carat stone is about 2mm in diameter, and appears to be about the size of the letter 'o' on a typewriter, then a 1mm stone is about half that size It doesn't work like that I am afraid. A 1mm diamond is approx 0.5 points or 0.005 carats. Commonly known as a diamond chip.
Magic sizes in a diamond refer to certain weight categories that are considered desirable or significant within the diamond industry. These weights are often associated with price premiums and popularity. For example, some magic sizes include 0.50 carats, 1.00 carats, and 1.50 carats, among others. These weights may vary depending on regional preferences and market trends.
A jeweller can estimate the carat size of a stone, however, to learn its true carat weight, a stone must be removed from its setting and weighed.
1 carat = 100 cents = 6.5 mm = solitaire
Your notation -- 1.3 ctw -- indicates that the total weight of all the diamonds weighs 1.3 carats. This means that there are small diamonds involved, at least one smaller than a single stone that weighs 1.3 carats. A single stone weighing 1.3 carats is not considered a small stone. A small diamond may be one quarter carat or smaller.
Usually stones of this size and larger are simply noted as 'important diamonds', many of which have names.You can see more important diamonds using the link, below, many of which are smaller than 100 carats.
Your answer depends on the size of the diamonds, their cut, clarity and carat weight. A single diamond weighing 20 carats will be more expensive than a collection of diamonds with a total weight of 20 carats.
Although 90% of women never get a diamond over 1 carat, there are many sizes and shapes that diamonds can be cut into. Jewelers can cut a diamond to any size or shape. The largest cut diamond in the world is the Centenary, which holds the record at 273 carats. Before it was cut, it weighed 520 carats.
One carat equals 100 in this example. If the diamonds are of equal size, then each diamond weighs 4.5454545 carats.
The purity of gold is measured in "Carats"The size of diamonds is measured in "Carats", use of the measurefor other gems is common but incorrect (just marketing).
ok it's carats.. just the term to determine what size and amount it is.. diamonds are judged by color; cost; clarity.. how clear they are if there are flaws... and carats.. for ex.. 14 carat.. the best is 24 carat which is pure
No one knows about diamonds that are not unearthed: their size, quality or location. To date, however, the largest raw diamond found by mankind was found in 1906, and it weighed just over 3,000 carats. It fit into the palm of an adult male's hand. There have been no other diamonds of this size found since.
Diamonds are weighed in carats, and pricing is highly variable, depending on factors like color, lack of flaws, total size, etc.
The Cullinan Diamond, found in South Africa in the early 1900s weighed more than 3,000 carats, raw, and fit into a grown man's palm. No diamond has been found since of this magnificent size. Most gem-quality diamonds found are about the size of a garden pea.
It depends on the cut, clarity, color, size, and other factors. A large, single emerald is worth more than a collection of stones that total six carats. Emeralds are worth less if they are heavily flawed or treated to hide flaws. A single stone of this size may be worth very little compared to a perfect emerald one-tenth the size.
Both are large stones:The Hope Diamond is blue-ish in its colour; andThe Cullinan for its size as a raw stone, more than 3,000 carats.