Red End: Argyle Unveils Its Final Pink Tender

By Rob Bates Rio Tinto has lifted the curtains on its final Argyle Pink Diamond Tender, which features a characteristically showstopping collection of pink, red, and blue diamonds from the now-shuttered Australian mine. This 38th, and last, tender will comprise 70 diamonds weighing 81.63 cts. The year’s biggest “hero” stone is the 3.47 ct. Argyle […]