33.08ct Square Cabochon Ruby 20x19.5mm Richard Mille Case & Movement Screwdriver; dynagem Swiss Style Plus universal 16-22mm

Plus universal 16-22mm

31 Holes Ø6

Injection temperature 68 to 71°C

8" x 1" Medium (4 Lap)

33.08ct Square Cabochon Ruby 20x19.5mm Richard Mille Case & Movement Screwdriver; dynagem Swiss Style Plus universal 16-22mmRubys hues vary from orangey red to purplish red and the presence of chromium is the trace element that causes the unparalleled ruby red colour. The most valuable colour is the pigeons blood variety which is a vibrant red without any orange or purple tint. The name ruby derives from the word ruber that means red in Latin and it is the most valuable variety of the corundum species. Some rubies display the gemmological phenomenon called asterism where