Aquamarine, Diamond & Blue Sapphire Cocktail Ring This ring features a central emerald cut natural aquamarine weighing an approximate carats. That gemstone is adorned by four round brilliant cut diamonds and two round brilliant cut rich blue sapphires.
Enamel Cabochon Tourmaline Diamond Gold Ring by William Noble. The ring features a cabochon tourmaline set in 18 karat yellow gold and accented with hand-enameled flowers in blue hues. The enameling is accented with green tourmaline and diamonds.