- 10K White Gold Diamond Halo Oval Amethyst Birthstone Ring For WomenUS$ 262.00Total diamond weight .03ctAlanis Unique Amethyst and Diamond Ring With Infinity Bands in 10k White Gold For WomenUS$ 319.00Total diamond weight .01ctAugusta Amethyst and Diamond 10k Rose and White Gold Ring for LadiesUS$ 281.00Total diamond weight .03ctBavaria 10K White Gold Modern Amethyst and Diamond Ring For WomenUS$ 236.00Total diamond weight .015ct