Perhaps one of the rarest birds we’ve run in the past decade is the Vacheron Constantin Kalla Lord ref. 35711 timepiece which features no less than 316 emerald-cut diamonds, including 26 set into the dial. All gemstones have been carefully matched for uniform clarity, color, and cut. Totaling 55 carats in all and forming 8,216 gleaming facets, they are mounted on 140 grams of solid 18K white gold. The watch crystal is made of corundum, the hardest natural substance after diamond, and an iconic watch from the early 1980s.