Antique Victorian 1856 Turquoise & Diamond 18ct Yellow Gold RingAntique Victorian gemstone ring, featuring three large oval turquoise gemstones interspersed with four white diamonds set into an 18ct yellow gold setting. The ring has a number of hallmarks indicating the piece was hallmarked in London, England. The ring is 18ct yellow gold hallmarked 1856. HALLMARKS Crown, 18, Passant, Letter 'A'. ERA Victorian, 1837 1901 MEASUREMENTS The gemstone setting of the ring measures 1. 6cm 0. 6" in length, 0. 6cm 0. 2" in