the main diamond cutting centre in india is
Surat, India
title: Diamond cutting text: cut quality. Since diamonds are one of the hardest materials, special diamond-coated surfaces are used to grind the diamond down. The first major development in diamond cutting came with the "Point Cut" during the later half of the 14th century: the Point Cut follows the natural shape of an octahedral rough diamond crystal, eliminating some waste in the cutting process. Diamond cutting, as well as overall processing, is concentrated in a few cities around the world. The main diamond trading centers are Antwerp, Tel Aviv, and Dubai from where roughs are sent to the main processing centers of India and title: Diamond cut text: the 1970s, Bruce Harding developed another mathematical model for gem design. Since then, several groups have used computer models and specialized scopes to design diamond cuts. The world's top diamond cutting and polishing center is India. It processes 11 out of 12 diamonds in jewelry worldwide. The sector employs 1.3 million people and accounts for 14% of India's $80 billion of annual exports. Its share in the world polished diamond market is 92% by pieces and 55% by value. In its rough state, a diamond is fairly unremarkable in appearance. Most gem diamonds are recovered from secondary or alluvial deposits, title: Economy of India text: are the hubs of world's jewellery polishing, cutting, precision finishing, supply and trade. Unlike other centres, the gems and jewellery industry in India is primarily artisan-driven; the sector is manual, highly fragmented, and almost entirely served by family-owned operations. The particular strength of this sub-sector is in precision cutting, polishing and processing small diamonds (below one carat). India is also a hub for processing of larger diamonds, pearls and other precious stones. Statistically, 11 out of 12 diamonds set in any jewellery in the world are cut and polished in India. It is also a major hub of gold and title: Diamond mining in India text: water, and venomous snakes. The French traveler Jean Baptiste Tavernier visited the Krishna River diggings in 1665, and estimated that about 60,000 people were mining diamonds. The town of Karwan, near the fortress city of Golkonda, now a suburb of Hyderabad, became the world's largest diamond-cutting and diamond-trading center. Golconda was not close to diamond mines, but owed its status as a diamond center to its location on a major trade route from the mines to the south and east. The diamonds became known as Golconda Diamonds, and in Europe, the word Golconda came to mean a place of great title: Diamond cutting text: China. Diamonds are cut and polished in Surat, India and the Chinese cities of Guangzhou and Shenzhen. India in recent years has held between 19–31% of the world market in polished diamonds and China has held 17% of the world market share in a recent year. Another important diamond center is New York City. The diamond cutting process includes these steps; "planning", "cleaving" or "sawing", "bruting", "polishing", and "final inspection". Diamond manufacturers analyze diamond rough from an economic perspective, with two objectives steering decisions made about how a faceted diamond will be cut. The first objective is that of maximum