14 KT White Gold Blue Sapphires & Diamond Omega Back Earrings Polished 14 KT White Gold Omega Back Earrings with Baguette Blue Sapphire & Outlined in Round Diamonds. Graceful Curevd Design 2.10 CT TW Rubies .38 CT TW Diamonds Secure Omega Backs Measures 20 mm x 5 MM lovely Well-Constructed Timeless style! Great for every day wear or dress-up! Also available in Red Rubies. Please see the entire selection of White Gold design earrings.