Diamond is always a luxury piece of jewellery. This glittering gemstone captivates the minds and eyes of so many people, not only because of its scarcity but also because of the uniqueness of its design and some more things. Diamonds are rare gemstones that have formed on Earth over the years 2000. gemstones are mainly classified into two: precious and semiprecious. Diamonds, emerald, Saphire, ruby are some of the Precious diamonds whereas the semiprecious are aquamarine, garnet, moonstone, pearl...these all gemstones are used in ornaments because of their beauty and they all have their specialties. The desire for a diamond because of its beauty as a gem and it is the hardest substances man has ever discovered also the purest that occurs in nature. Diamond is the crystal form of carbons, it is also used for cutting in the industrial sector such as glass cutting because of its hardness.
The diamonds we use today formed on Earth thousands of years ago. Diamonds are formed when carbon atoms are subjected to a temperature of 2000 degree Celcius and pressure at depth of 12218km of the earth mantle. These are then emitted as magma by volcanic eruptions and reach our hands through mining. Diamond forms in another way, early diamonds mines where the alluvial gravels in the banks or beds of active or dried up rivers in which diamonds and other heavy and hard crystals had been concentrated by the flooding action of water. Some alluvial gravels containing diamonds were found under the surface in desert regions where rivers had dried up many thousands of years ago. These alluvial diamonds were known in India as early. Now there are around 35 countries that have the source of diamonds in which South Africa, Russia, Botswana are the main sources. This is why diamonds become more precious, the availability of diamonds is decreasing day by day. As the availability of any commodity decreases, so does its demand. 
During the deep study of diamonds want to go through some more areas. India was the primary source of Diamond before the 19th century, These alluvial diamonds were known in India as early as about 800 BC. The most famous work was at Kollur in the great gorge cut by the river Krishna in south India, where several historical diamonds, including the Kohinoor(one of the largest diamonds in the world), the Regent, the great mogul were found. Then in 1878, mining started in South Africa, From there, tons of diamonds were mined. The Availability of diamonds increased day by day, so the market become dull then the investors of the mining Authority decided to increase the demand for diamonds. For that purpose, they formed Cartel -De Beers Consolidated Mines. They store a bulk amount of diamonds in their warehouse located in London and definite amount sellout in market. The rich people only buy those diamonds for enjoying their luxurious life. Then the realization that doing so would result in loss of business prompted them to come up with new marketing. As part of that, they brought in a campaign in which they introduce the concept of an engagement ring must be a diamond ring and popularised this theme through films across the world. Hero gifted diamond rings to Heroines which shows the depth of their love and affection. so the real-life lovers or committed ones are also forced to buy diamond rings. Only 10% around the world had a diamond in their engagement ring before the campaign, after the campaign 80% of the engagement rings sold across the world had diamonds. That’s how the diamond became so popular. A diamond is forever as true as De Beers' ad text.
After mining the rough diamond undergoing various steps like molding, waxing, casting, assembling finally polishing, the hands of jewellery designers increase the beauty and shining of the diamond. Customers get the product as their wished ornaments also customers ensure the quality of diamonds by buying diamonds from branded diamond dealers. when the eyes of customer glittering due to the shining of diamond she whispered in mind with all joy diamond is really forever.
