Lady's Platinum 9.00ct Rubellite & Diamond Necklace. Contains: 1 Oval Cut Natural Rubellite. Weight Approx: 9.00ct, Color: Red, Clarity: Transparent-LI. 18 Round Brilliant Cut Natural Diamonds. Weight Approx: 1.13cttw, Color: G-H, Clarity: VS1/VS2. 11 Tapered Baguette Cut Natural Diamonds. Weight Approx: 0.89cttw, Color: G-H, Clarity: VS1/VS2. Necklace Length: 18 Inches. When I was a young man in New York, every well-healed woman had a ruby necklace. Since rubies are now hovering around $5,000 a carat, geologists and prospectors have reexamined rubellite, which is a rare natural tourmaline that is pinkish red. It is without question one of the most gorgeous pieces of jewelry that I've ever had to handle. The tapered baguette diamond mounting is reminiscent of the art deco period, as is the platinum chain. It's doubtful that I'll ever come across another piece with this color and brilliance ever again. It's jewelry like this that has made our website world famous. One of the joys in my life is handling precious jewelry of this quality.