India, Nov. 13 -- A 24-carat fancy intense pink diamond ring sold for 12.1 million Swiss francs (approx Rs.136.63 crore) at Christie's auction in Geneva on Tuesday. The final price was within its pre-sale estimate, the auction house said. The emerald-cut 'Bulgari Pink' with a special India link was expected to fetch 10-15 million Swiss francs (approx Rs.112.92 to Rs.169.38 crore) and headlined Christie's Magnificent Jewels sale in Geneva. The extremely rare jewel, believed to have originated from India's famous Golconda diamond-producing region, was acquired in India by the consignor's great-grandparents in the 1950s. It has remained in the same European noble family for more than 70 years. Ahead of the sale, Max Fawcett, Christie's global head of jewellery, described the stone as "the Mona Lisa of pink diamonds". The historic Golconda region in southern India is associated with some of the world's most celebrated diamonds, including the Koh-i-Noor and the Hope Diamond. The auction also featured a private collection of nearly 300 20th-century jewels, including works by Bulgari, Cartier and Graff.HTC...