Edwardian Four Diamond Ring $1,500.00 In numerology, four is the number of completion. Heavy-hitting groups of four include the seasons, the directions, the elements, and the cardinal virtues of justice, prudence, temperance, and fortitude. This c. 1910 ring is set with four .10ct old European cut diamonds. The stones are set in white gold atop a pink gold mounting with decorative engraving across the north and south sides. The ring is stamped "585" for 14k gold.