0.56ct Round Faceted Ruby 4.8mm 12 x 0.34 x 1150 x 34mm (to fit Hermle barrel 31) Max watch diameter Ø43mm

Max watch diameter Ø43mm

Bar mould length adjustable from 10 to 50mm

Ø40mm CB Labels

Supplied with wooden box

0.56ct Round Faceted Ruby 4.8mm 12 x 0.34 x 1150 x 34mm (to fit Hermle barrel 31) Max watch diameter Ø43mmRubys 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. Some rubies display the gemmological phenomenon called asterism where cabochon cut stones have a whitish star on top of the dome. This is created by fine intersecting rutile needle inclusions.;