New Delhi, Dec 11 (ANI): Prime Minister Narendra Modi and Russian President Vladimir Putin inaugurated the "World Diamond Conference" at Vigyan Bhawan on Thursday. PM Modi while addressing the conference said that he is pleased with Vladimir Putin's presence at the conference. He added that India is a natural venue for this conference and it is believed the diamond is India's gift to the world. He further stated that in India, diamond is a great source of employment for the people.