Marina B Cristina collar designed as a tapered sprung collar featuring graduated pear-shaped tourmalines surrounded by pavé-set diamonds, adorned with fancy-shaped onyx accents (estimate: £35,200-50,800).

Marina B Cristina collar designed as a tapered sprung collar featuring graduated pear-shaped tourmalines surrounded by pavé-set diamonds, adorned with fancy-shaped onyx accents (estimate: £35,200-50,800).