Marchakemerald, ruby and diamondcocktail ring. Set centrally with a round cabochonnatural emerald with no colour enhancement in an open backrubover setting with an approximate weight of 1.00 carats, bordered by two rows of fourteen oval carved natural unenhanced rubies in open back claw settings with an approximate combined weight of 10.00 carats, further set with two rows of twenty round eight cutdiamonds in open back grain settings with an approximate combined weight of 0.30 carats, to an ornate bombécluster design featuring foliate carvings, a solid ribbed gallery and intricately pierced backholing, leading to trumpeting shouldersand flowing through to a D-shapeshank. Marked yellow gold, signed 'Marchak - Paris', numbered '01382B', French, circa 1950.