In a move that must surely sour the day of the cash-flashers over at Harry Winston, their relatively recent claim to pink diamond supremacy already looks a little dated. Indeed, even though the eminent New York-headquartered jewellery house only secured the genuinely magnifico Winston Pink Legacy diamond a few short months ago, it is now set to be eclipsed by Graff Jewellers, with their London-based rival having unveiled the arguably-even-more-magnifico Graff Lesotho Pink.

Although a little lower on the carat count – 13.33 carats compared to Harry Winston’s 18.96 carats – with a price tag of US$8,750,360, the Graff gem wins out on the all-important per-carat price scale.

It would, however, seem that Graff’s long-term pink diamond victory is far from assured, with rumours already swirling that yet grander pinkly perfect specimens are set to be unearthed in Lesotho, the southern African nation that has become the goto source for such salmonesque stones. If that’s borne out, it could be that this latest spate of pink one-upmanship could, indeed, run and run.