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Stones are still the mainstays of civil construction in India, with stones being used extensively in public buildings, hotels, and temples. They are increasingly being used in homes, with the use of stones now penetrating amongst the growing middle class of India. The success of the commercial stone industry solely depends on defects in rock/stone.
The Diamond Fund is part of a larger State Fund of Precious Stones, managed by the Ministry of Finance, and accumulates the most valuable items, in particular All raw diamonds exceeding 50 carats (10 g) All cut diamonds exceeding 20 carats (4 g), cut diamonds of exceptional quality exceeding 6 carats (1.2 g)
The Golconda diamondiferous region is located in the Southern Indian peninsular shield, [2] which was formed during the process of proterozoic and Insular India. [3] The region is spread over 50,000 km 2 (19,000 sq mi), within the sediments of the Krishna-Pennar river basin and Deccan Traps, [2] and contains 120 out of the 150 kimberlite pipes in India. [4]
Diamond mine in the Golconda region 1725 CE from the collection of Pieter van der Aa—a Dutch publisher known for preparing maps and atlases.. The period of peak production of the Golconda diamonds (in the present-day states Andhra Pradesh and Telangana, India) was under the Qutb Shahi dynasty (16th century – 17th century CE), and the region was also known as the "Golconda Sultanate".
The Padmanabhaswamy temple treasure is a collection of valuable objects including gold thrones, crowns, coins, statues and ornaments, diamonds and other precious stones. It was discovered in some of the subterranean vaults of the Padmanabhaswamy Temple in Thiruvananthapuram, in the Indian state of Kerala, when five of its six (or possibly eight) vaults were opened on 27 June 2011.
India's largest silver mine is the Sindesar Khurd Mine, in Rajasthan. [85] Hindustan Zinc Limited (HZL) is India's largest silver producer. [86] As of 2022, HZL is also the world's 5th largest silver producer. [86]
Drawing of the Great Moghul Diamond, by Tavernier in 1666 Sketch of the Orlov diamond from the book Precious Stones by Max Bauer, 1904. The Great Mogul was a large diamond that is believed to have been discovered around 1650, most probably around the Kollur Mine in the Golconda region of southern India.
The major commodities imported by India from Rwanda are metallic articles (aluminum, lead and copper), precious and semi-precious stones, tea and coffee. [3] The Rwandan High Commissioner to India stated that in the year 2011 alone, projects by Indian entrepreneurs worth over US$200 million were registered in Rwanda.