We received this week a 151 Ct. purple lab diamond in a cushion cut. The estimated value depends based on auction estimates from Sotheby’s would be £360 million. We discount Lab diamonds by 60% and estimate the value of the gem to be £72 million. The purple colour is tinged with blue and sparkles.
For investments, I prefer stones that could be auctioned but this coloured stone is a good addition to the L Diamond Curator’s gem portfolio.