(Sharecast News) - Firestone Diamonds has recovered a 46 carat white, makeable diamond from its Liqhobong mine in Lesotho.The company said on Friday that the stone was recovered undamaged and will go on sale at the next tender which is scheduled to take place at the end of January 2019.Firestone also reported a stabilisation in pricing for the smaller, lower value stones (-3 grainers) at the recent sale that was concluded on 7 December, which it said "confirms the trend reported by other producers".Chief executive officer Paul Bosma said: "The recovery of the white 46 carat stone is good news as we start mining across the pit towards the northern side of the orebody over the coming months."We are also pleased by the fact that the prices of our smaller, lower value goods have stabilised and we look forward to further improvement as we head into the new year on the back of an expected positive diamond jewellery retail season."At 1110 GMT, the shares were up 14.1% to 3.85p.