A Columbian emerald and diamond set ring, 18ct yellow gold, of unisex large cluster design in signet style band, featuring a quality Columbian emerald to centre of square emerald cut, weighing approximately 4.20ct, medium intense bright green in colour, claw set in four claws, framed by a fine channel set frame of small brilliant cut diamonds, twenty-one stones totalling approximately 0.42ct, merging to a wide etched patterned band