Quatrefoil Point Cut Ring, c. 1550 A.D., diamond, enamel, gold, This ring introduces the table cut diamond, obtained by slicing across the top of the point cut, and the first step in the long process of mastering the techniques of diamond cutting. Since table cuts were still rare point cuts have been used for the bezel. The prestige of a diamond ring stood so high that it was not only used by the rich at weddings, but kings and queens adopted it as an emblem.
Gold ring, the long oval bezel set with a cornelian intaglio bust of Mercury, with a wing in his curly hair, neckline draped, facing in profile towards the left. Ring and intaglio Roman, 1st century A.D