What determines the value of diamonds? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

What determines the value of diamonds? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

What determines the value of diamonds?

As you know, diamonds are beautiful gems. Thus, it can be said that the beauty of a diamond determines its attractiveness and value in the eyes of people. In addition, diamonds in general and diamonds in particular are the hardest substances known to man, and this hardness is extremely beneficial to people. Therefore, it is also a measure of the value of diamonds. Why is one diamond more valuable than another? Diamonds sold in jewelry stores vary greatly in color and quality (clarity). They come in every color of the rainbow, with some colors being rarer than others. Blue and red diamonds and pure colorless stones are valued more than others.

Another factor that largely determines the value of a diamond is its clarity. Diamonds can be as clean as a drop of water, but they can have imperfections ranging from small dots to large cracks. It is known that some diamonds were so valuable in the eyes of people that they played a certain role in history.

The most famous among them is "Koh-i-nor (mountain of light)" - the oldest diamond known on earth. The rulers and sovereigns of many countries were so eager to take possession of it that, starting from 1400, for five centuries, almost all military incursions into India were determined by this desire! "Hope" - an unusually blue diamond, weighing about 44 carats - also passed through the hands of a large number of owners.

There is a belief that this stone brings misfortune to its owner. Other well-known diamonds include Orlov, which was an adornment of the crown of Russian tsars, Regent, kept in the Louvre in Paris, and Cullinan, sawn into pieces inserted into the crown and scepter of English monarchs. Lower quality diamonds are used in production. Diamond wheels are widely used for sharpening cutting tools and grinding lenses. Industrial diamonds are also used in drills designed for drilling stones.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Why did the Turks and Caicos Islands have igloos on their coat of arms?

The old coat of arms and flag of the Turks and Caicos Islands, which are part of the United Kingdom, showed a sailboat, a local resident on the shore and two piles of salt, which reflected the role of the colony as a major salt mining point. However, the English designer, having received the images, confused the mounds of salt with buildings and added black "doors" to them. Thus, the national dwellings of the Eskimos - the igloo appeared on the coat of arms of the tropical islands, which was in use until 1968.

Test your knowledge! Did you know...

▪ What is the nitrogen cycle?

▪ What winds bring what weather?

▪ What football player once played in the FA Cup final with a broken neck?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Insulin patch 11.05.2016

To combat diabetes, patients are given insulin injections, and no replacement for this procedure is yet foreseen. Insulin pills, developed under the guidance of Academician N.A. Plate, failed to break into the market, and attempts to implant insulin-producing beta cells did not lead to serious success due to the immune response. But researchers don't stop looking.

Biochemists from North Carolina, led by Gu Zhen, decided to take advantage of nanotechnology and hide beta cells from the immune system. To do this, they created a patch covered with many microscopic needles. At the first stage, the needles were filled with insulin, and a patch glued to the mouse's skin lowered the blood sugar. Then the beta cells themselves were hidden in the needles, which were placed in biodegradable alginate capsules filled with a nutrient solution. Sugar signal boosters have also been added - vials filled with specially prepared chemicals.

When the patch is glued to the skin, the needles dig into it, and the entire system begins to exchange substances with the blood through the skin capillaries. Upon learning that the sugar content is rising, beta cells begin to produce insulin. As it turned out, the connection works well: when another patch was put on the experimental mouse, insulin did not begin to be released until the sugar in her blood rose again. The total duration of the patches was 20 hours.

Of course, this is not a panacea, the patch, if it passes clinical trials, will have to be changed every day. But if successful, the patient gets rid of insulin suppliers forever, and a similar patch can be made to order and, possibly, from the patient's own cells in a small but well-equipped nanobiotechnological laboratory.

Other interesting news:

▪ Axis M3027-PVE - panoramic camera for outdoor video surveillance

▪ TV from SEIKO EPSON with a built-in photo printer

▪ New series of PWM controllers for AC-DC and DC-DC converters

▪ Pumping water into the ocean

▪ Bionic robot kangaroo

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site House, household plots, hobbies. Article selection

▪ article Faculty Pediatrics. Crib

▪ article Why do jellyfish sting? Detailed answer

▪ article Self-insurance and self-detention when moving in mountainous areas. Travel Tips

▪ article On-board indicator of the deviation of the angle of the ZSK. Encyclopedia of radio electronics and electrical engineering

▪ article Artist-momentalist. Focus Secret

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews