Jessica McCormack and Haas Brothers, an enamel and diamond ring, designed as an ouroboros, a snake

Jessica McCormack and Haas Brothers, an enamel and diamond ring, designed as an ouroboros, a snake biting its own tail, applied with deep blue enamel, its eyes set with brilliant-cut diamonds, mounted in 18ct gold, size S, signed JMcC HAAS, British hallmark for 18ct gold, sponsor's mark JM, numbered 2443, case and outer box stamped JMcC HAAS