Tanzanite. It is rising in value daily. Eventually the source will run out. You can only get it from Tazania
They are used to cut other material because diamonds are the hardest thing on Earth.
Raw diamonds are transported like any other valuable: heavily guarded, tightly secured and usually in secret.
Diamonds are pretty tough,did you know that when they mine diamonds from the ground they cut in to nice little shapes with other diamonds!
Diamond are only scratched by diamonds.
At the mine, diamonds are washed under running water after the material is subjected to milling which crushes the less-hard materials. The material may also be tumbled in water-filled drums.
Every diamond is valued by its cut, colour, clarity and carat weight. A local jeweler may be able to help you compare two similar diamonds, each with a different colour, and explain to you why one may be more valuable than the other.
Diamonds and platinum are both valuable and expensive commodities. The worth of one compared to the other largely depends on the quality and color.
The field test for diamonds is 'extreme hardness'. Diamond mining operations separate raw stones from other material using water: since the specific gravity of diamonds is higher (heavier) than the other material, the diamonds can be collected in trays in separate levels of the washing operations.
Diamonds are considered more valuable than water because of their scarcity and the high demand for them as luxury goods. Additionally, diamonds have a perception of being rare, precious, and symbolizing love and commitment, which contributes to their high value in the market. Water, on the other hand, is essential for life and relatively abundant, which may impact its perceived value compared to diamonds.
All other measurements being equal, two diamonds of the same clarity, carat weight and cut, one being white and the other being brown, you'll pay more for a white diamond. Brown diamonds are the most common colour of diamond found, and one shade of this colour is called chocolate.
Diamonds are small and valuable. The paper wrapping provides a carrying mechanism for the gems, and affords a surface on the paper, upon which to write inventory identifiers .
Some diamonds can be enhanced by heat or other techniques, to make their colour more vibrant, or to hide visible flaws. Any enhanced diamond is quickly obvious to any certified gemologist, and as well, enhanced diamonds are less valuable/ expensive than diamonds that have not been treated.