Sapphire and Diamond necklace.   An 18 karat gold, colored diamond, multi-colored sapphire and green garnet pendant necklace depicting...

A diamond, ruby and onyx ring.  A ruby and diamond ring by Cindy Chao. A platinum, diamond and Padparadscha sapphire ring.  A...

Turquoise and diamond ring, Van Cleef & Arpels, 1960's. An 18 karat gold and mystery-set sapphire ring, Van Cleef & Arpe...