Carat is a weight indicator of diamonds.
Carrots are vegetables, which don't occur in diamonds.
Diamond is another name for rhombus.
Size of diamond is available in different measurements: its mm size across the girdle diagonally, and its carat weight. You can look at the chart below, and depending on the cut, you may be able to estimate the different sizes for your diamond. NB: "Each diamond has its own measurements. Each diamond will differ from the standard millimeter dimension!"
There is none, diamond has about 60 bonds of graphite inside of it.
A 4mm diamond measures 4mm in at least one measurement.
If the diamond is an ideal emerald cut with these measurements, the diamond may weigh about one quarter of a carat. Otherwise, you have stated the diamond's 'big' size in measurements.
A diamond weighing 14 carats would be a relatively large diamond. Carrot is a root vegetable.
It depends on the size of the carrot. Their size varies.
Diamonds are weighed in carats, and pricing is highly variable, depending on factors like color, lack of flaws, total size, etc.
Carrots are not known for either their diamonds or their mills.
Obviously, the weight depends on the size and water content of a carrot.
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You're asking about carats, not carrots. Carats are units of measure used to weigh precious gem stones, including ruby and diamond. One carat weighs about .20 grams.
The weight of a single carrot depends on the carrot's size, which is too variable to give a weight. Carrots are sold loose, washed and in bags, or in tins.
Not all carrots are the same size!
A .25 carrot would be a Very Tiny carrot -- you could pull one from your garden and ask around for its value. Otherwise, a .25 carat diamond is worth whatever someone will pay you for it. Today, on Blue Nile, for example, you can purchase a similar diamond and pay between US$246 and US$366, depending on the clarity, cut, colour and exact carat weight you want.
Water moves out of the carrot's cells and into the salt water due the difference in concentration of NaCl. This might account for the spongy-ness of the carrot
Generally, 10 to 13 carat diamonds are the highest used in watches.