After a wait of 15 years, a labourer and his three partners had a shower of good luck when they found an 8.22 carat diamond in a mine in Madhya Pradesh's Panna district, an official said.

Local experts say the diamond may fetch up to Rs 40 lakh and as per officials, the proceeds from the auction of such raw diamonds would be given to the respective miners after the deduction of government royalty and taxes. Ratanlal Prajapati and his partners unearthed the 8.22 carat diamond from leased land in the Hirapur Tapariyan area of the district and deposited it at the diamond office on September 13, Panna Collector Sanjay Kumar Mishra told reporters.