0.50ctw One and Only Collection Round Halo Bridal Set in 14kt Two-Tone White and Yellow Gold. This modern bridal set has the best of both worldsâ€¦14K Yellow Gold for the center stones and 14K White Gold on the side. Completely versatile and unique. The center sits slightly lower than the typical bridal rings, to avoid damage and so you can wear it everyday without worrying. The design is clean and simple. The engagement ring comes with a beautifully diamond studded wedding band which fits perfectly with it!