Every diamond is valued by its carat weight, its colour, its cut and its clarity. There is no standard.
Without endorsement, you can price black diamonds, below.
Black diamonds can be estimated approx. $10,000 per carat.
About 3.5$ 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
It depends on whether it is treated or natural. The cost of a treated black diamond ranges from as low as $100 to $200 per carat whereas a natural diamond, which is GIA certified the cost per carat ranges from $2500 to $3000, depending on the quality.
You may be interested in industrial diamonds -- about 80% of all diamonds mined, which you can purchase by the pound on a bulk basis, month after month, for about the cost of a double latte. (US$.30/ carat for bort.)
You can purchase industrial diamonds in this quantity -- about 80% of all diamonds mined are industrial diamonds -- and pay "...US$0.30 per carat for bort-size material to about $7 to $10 per carat for most stones, with some larger stones selling for up to $200 per carat....." according to the USGS site, below. If you want to purchase gemstone quality diamonds, you will pay between US$2,351 and US$36,000 per carat, depending on the cut, clarity and colour of colourless that you want. Five pounds equals about 11,339.809 carats, can you complete the math for the quality of diamonds you want to buy?
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.
A diamond is valued by its cut, clarity, carat weight and colour. A local jeweler can show you diamonds and answer your question.
price of yellow sapphire stone in the market is 1,000/- per carat to 50,000/ per carat
around $1,000 to $1,500 per carat for very good ones, light blue stone can cost you around $90 per carat, while a light blue-green stone can cost you anywhere between $180 to $240 per carat (USD btw)
Red diamonds are the most expensive in terms of money per carat, since red is the rarest colour of natural diamonds.
Zero as 40 carat gold does not exist
50 usd per kg