Rocks Couture Sapphire Collection 18ct White Gold Ring With An Oval Cut Sapphire & 2 Round Brilliant Cut Diamonds Each Side. This striking 3.20ct oval cut Sapphire is the star of the ring. The deep blue tones are magnificent and the addition of two diamonds on either side create a balanced and unique ring. Sapphires are rapidly becoming the desired choice for engagement rings due to their resilience, beauty and value. Sapphire Carat Weight: 3.20ct Diamond Total Carat Weight: 0.60ct