Any raw diamond must be seen to be evaluated for its value, because so much will be lost when the stone is cut and faceted.
You have the total carat weight of the uncut stone, and you've indicated that the diamond is 'white', but the clarity and the grade of white will determine ultimately how high the final owner can price the cut stone.
Find a certified gemologist who will help you evaluate a raw diamond, and potentially, who can direct you to a reputable diamond cutter.
Your answer depends on what property interests you: clarity or carat weight, or whether or not your 'big natural...stone' is a diamond. A local jeweler can help you understand the stone that you take in to be tested.
About 3.5$ mil.added 11/3/2010Not exactly true.A standard ounce of is 141.747 carats.Industrial diamonds can sell for $1-$5 per carat .Jewelry grade diamonds can cost $50 per carat for the smallest diamonds to $2000-$10,000 for a nice white 1 carat diamond to $25 million for a 50 carat diamond. ( diamond over 20 carats are generally considered semi unique and hard to price)So given that range an ounce of diamonds can cost from about $150 up to $300,000,000. In addition since a single 141.47 carat diamond would be one of the largest diamonds in the world, it could be priceless
On a per carat basis, red diamonds are the most valuable of all diamonds, averaging over $1 Million USD per carat. There are only about 8-10 authenticated red diamonds known. If you mean simply what is the most valuable single diamond, then a good guess is the 'Millenium Star', a 203.4 carat perfect white diamond (D color, Flawless). The single most valuable diamond in the world is the 530 carat white diamond, Cullinan I (a.k.a. the Great Star of Africa) in the British Crown Jewels on display in the Tower of London. Although extremely difficult to value - it's not as if such a thing has ever come on the market before - figures most often quoted are in the region of $400 million. The most precious, basis of its importance and value, not based on carat will be The Koh-e-noor, which is now kept in hand by the British Jewels and a part of the British Crown originated from Andhra Pradesh, a state in the Republic of India. Its price cannot be valued and its calculated aproximately as 3.5 times the wealth of the whole world.
The color scale for white diamonds runs from D to Z. On one end of the spectrum you have completely white without any traces of yellow and on the other end, a diamond fully saturated with yellow and no traces of whiteness. Due to the fact that they are quite common, they are actually quite affordable.
It really depends on the cut, clarity, color and carat weight of the diamond. Some colored diamonds maybe more expensive based on the above factors and some colorless diamonds maybe cheaper based on the same factors. Where the diamonds are sourced from and whether they are certified also has an impact on the cost.
A natural blue diamond will always be worth more than a white or colourless diamond, given equal carat weight, clarity, and excellence of the cut.
its expensive
Your answer depends on what property interests you: clarity or carat weight, or whether or not your 'big natural...stone' is a diamond. A local jeweler can help you understand the stone that you take in to be tested.
If we select top qualities for a white diamond then a 1 carat round cut, H color, Si1 clarity, and excellent cut with GIA certification can cost you approximately $5258. A 1.29 carat cushion cut black diamond can cost upwards of $1,500.
The carat weight of the stones can be measured by a certified gemologist.
All else being equal: carat weight, cut, and clarity, a blue diamond will always be more expensive than a white diamond.
All else being equal: carat weight, cut, and clarity, a red diamond will always be more expensive than a white diamond.
The value of a diamond depends on its cut, its clarity, its colour and its carat weight. A local jeweler can give you the answer you want.
Diamond (natural) is not white, but transparent.
Your answer depends on the quality of the diamond you want to purchase. Today on Blue Nile, you can purchase a seven carat diamond and pay between US$126,118 and US$881,945, depending on the cut, colour, clarity and exact carat weight you want. This is for a 'white' diamond. If you want to purchase another colour, your prices will be different.
Your answer is best available at your pawn shop of choice.
The price of one carat diamond white gold studded earrings varies widely. You can purchase them for as little as $250 or for as much as $1200 depending on exactly the style you're looking for.