- Emy Oval Tourmaline and Diamond Three-Stone Ring in 14k Rose Gold for LadiesUS$ 263.00Total diamond weight .03ctRosebelle Vintage Princess-Cut Tourmaline and Diamond Ring in 10K White GoldUS$ 338.00Total diamond weight .05ctGabrienne Art Deco Cushion Tourmaline and Diamond Halo Ring in 14K White Gold For WomenUS$ 1,650.00Total diamond weight .34ct