Of this, Rs 115 crore (Rs 1.15 billion) worth firm business was materalised and negotiations for Rs 90 crore (Rs 900 million) were conducted, he said.
Foreign buyers from 32 countries, including those from the US, UK, France, Germany, Singapore, UAE and Italy also held meetings at the exposition.
The buyer-seller meet was a platform for trading in various varieties of marble, granite, sandstone, slate, limestone, quartzite and other building stones, he added.
Stonemart, which began on January 28, attracted 25,000 visitors and had 255 exhibitors, including 69 foreigners.
Of the 10 countries which participated in Stonemart, Turkey had a total of 25 companies taking part in the event.
Gujarat, Karnataka, Andhra Pradesh, Madhya Pradesh and Uttranchal were among the 15 states, which participated for the first time in the exposition.