Each year, around 85 million carats of diamonds mined throughout the world, it's a huge number, then how is it possible that the diamond of the day a rare luxury article, we keep it?
Let's start at the beginning: What is the diamonds and where we can find it?
The diamond is the same carbon atom reason, as of carbon or graphite. The difference between the crystallizing their way, or the individual carbon atoms relative positions. The emergence of a lot of time, high temperature and pressure is required. All these circumstances under the ground, 150-200 km depth, they are now available, there are created this for us, so kind gemstones. This is approximately a Budapest – Bratislava corresponds to a distance, such a deep, even the most modern technology, we can't dig down, but lucky for us, there's no need to.
Approximately 70-140 million years ago, the cretaceous powerful volcanic eruptions brought to the surface all the diamonds. The lava kürtőszerű crater through a break up and follow me, this is what we call a primary deposit. Directly to the breakout area of just 19. century discovered and started mining. The millions of years of erosion causes the dissolved rocks sprawled in the valleys and river beds on the bottom, these are called secondary deposit. 19. century, just before this was known, the major mines in India and Brazil were. The river once they get into the sea, all that we know, but now few people know that the coastal seabed sand from mined diamonds. This is called a tertiary deposit, of which mining ships are used.
So a lot of different resources available, then why is it so rare 1 carat diamond?
The diamond not only is the jewelry manufacturing uses a huge demand on the industry in different areas of the hardness due. The mined gemstones large amount of jewelry-quality, world's, on average, about 90% of industrial use and only 10% of jewelers. Mining in huge quantities of rock are produced, on average, roughly 100 tonnes of processing required 1 ct jewelry diamonds to extract.
And there's no end to the process of...
At this time it is just a rough diamond we are talking about, these stones are great expertise to examine before working them. Try the most beautiful and largest polished gem out of it. Often it is necessary to split, or cut the stone and only then are you work with different sizes of pieces. The end of the process for up to 60% to lose the raw crystal is the original weight. If the raw diamond weight of 1 ct, then the average product total weight of 0,4 ct.
A little insight into the process, maybe it would make more sense, why is it so hard to find good quality 1 carat or more diamond to obtain.
Source:
Rooster Peter: the diamond