An 83 carat diamond is a rare stone, an immensely valuable stone, and probably one of a size that no human anyone knows would have a hand large enough to wear it.
You can browse the list, below, to find large stones and see their other physical measurements which are determined by each stone's cut
A 625 carat diamond refers to a diamond that weighs 625 carats. Carat is a unit of measurement for gemstones, with one carat equal to 200 milligrams. A diamond of this size would be considered extremely rare and valuable.
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.
The two measurements you give are not related, essentially. The MM measurement could be the diameter of a brilliant cut diamond, or one measurement of another shape. The carat weight you give is a weight measurement of gemstones.
The 'costliest diamond of the world' is measured by the price paid for a diamond. Depending on your particular criteria, there are several examples.When money changes hands to represent the costliest diamond...The JCK Marketplace Web site reports that an 84-carat [faceted] diamond sold for US $16.2 million, at "... $191,980 per carat, the highest price per carat ever paid for a white diamond at auction." This auction took place in 2007.At the same auction..."An extremely rare fancy vivid blue pear-shaped diamond, weighing 4.16 cts. and mounted as a ring, ...sold for $4.7 million. The per-carat price was more than $1.1 million, making it the second highest price per carat paid for a colored diamond at auction."In 2010, Reuters reported that "Petra sets record, sells diamond for $35 million" in its headline for the sale of a 507 carat raw diamond.
From the DiamondWorld magazine: "State-run mineral giant NMDC recently discovered a 37.68 carat diamond from Panna diamond mines in Madhya Pradesh, which stands as its biggest discovery till date." You can read more, below.
An 83 carat diamond is a very large diamond, and would command most any price you asked for it, depending on its colour, clarity and cut. Take your diamond to a certified gemologist who can help you document its characteristics, and potentially help you establish a market price for it.
A 1.00 point diamond is one carat, so a .12 point diamond is a little over 1/10th of a carat.
One carat weight of diamond weighs .20 grammes, so your diamond is about half that weight, or roughly half a carat.
A one carat diamond in the round brilliant shape measures aproximately 6.5mm at the girdle. If the diamond is another cut, measurements will be different.
You've given the carat weight of a diamond. 'Big', then, is based on the cut of the stone.
Carat is a weight, so its weight is one tenth of a carat or one tenth of .20 grams.
The diamond weighs .125 carats. Its mm measurements depend on the cut.
An eighth of a diamond carat, if it is a round cut, measures about 3.2mm at the girdle.
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.
Depending on the cut, a five carat diamond always weighs five carats. If the cut is round brilliant, the mm measurement at the girdle is about 11.
A forty-point diamond is nearly half a carat, which would be fifty points.
A carat is a measurement of diamond weight. From Amazon.com: "Carat is the unit of measurement used to describe the weight of diamonds. One carat is equal to 0.2 grams, or 0.007 ounces (avoirdupois). Five carats equals 1 gram, and 141.7 carats equals 1 ounce."