If I could share one piece of advice with someone looking to buy a diamond it would be that two diamonds with the same weight, color and clarity are probably not equal in value. The difference could be as significant as one diamond being twice the cost of the other stone. A number of factors such as the placement and color of the inclusion, talent of the cutter, etc. could come into play.
Let me explain ... the value of a diamond should never be judged based on a laboratory certificate alone. Diamonds are far more intriguing and complex. While the laboratory and certificate details are considerations, they are secondary to the findings of a seasoned expert who only after thorough examination can pass judgment on brilliance and value.
The advice that I would give is to make sure that you work with an experienced professional who has access to finer diamonds and understands the relationship between quality and price. Let the expert narrow the selection down to no more than a few stones... then trust your instincts and make your choice.
When humans mine for diamonds by digging into the ground, the two spheres that are most directly interacting are the geosphere (Earth's crust where the diamonds are located) and the lithosphere (the outer rigid shell of the Earth that includes the crust and upper mantle).
On average, around 100 million carats of gem-quality diamonds are mined each year, which is roughly 20 tons. This accounts for roughly 1% of the total diamonds mined annually.
Diamonds typically occur in two main geologic settings. The first is in kimberlite pipes, which are vertical, carrot-shaped volcanic pipes that bring diamonds from the mantle to the surface. The second setting is in alluvial deposits, where diamonds are eroded from the primary source and transported by rivers to be deposited in sediment.
Wilson Bentley, also known as Snowflake Bentley, was the first to document and photograph snowflakes and discover that no two are alike. Bentley's work in the late 19th century helped demonstrate the uniqueness of each snowflake's crystalline structure.
Man-made diamonds are often referred to as synthetic diamonds or lab-created diamonds.
Markets everywhere in the world respond to the laws of supply and demand. In addition, no two diamonds are ever **exactly** alike. So yes, the price of diamonds will differ by neighborhood, by city/ state and even by country.
Both diamond and graphite are allotropes of carbon.
Diamonds are carbon, you can not separate the two.
Two of Diamonds - album - was created on 2007-04-23.
You may be thinking of gem-quality and industrial diamonds. About 80% of all diamonds mined are industrial diamonds.
Real and fake diamonds can look similar to the untrained eye, but there are key differences that can help distinguish them. Real diamonds are formed naturally and have unique characteristics like high clarity and brilliance, whereas fake diamonds are usually made of materials like cubic zirconia and lack the same brilliance and hardness. To confirm the authenticity of a diamond, it's best to have it assessed by a professional jeweler.
If no two numbers are alike, then there is no mode. The mode is none.
The two bases are alike.
"Alike" is one word.
Both coal and diamonds are formed from carbon. However, diamonds are formed under intense pressure and heat deep in the Earth's mantle, while coal is formed from plant material that has been compressed and heated over millions of years.
The Cullinan and Excelsior Diamonds were found in South Africa.
Alike. They are two different biomes.