Oval Blueberry Sapphires™ set in two rows are contrasted by sparkling Vanilla Diamonds®, and contoured edges lined with additional Vanilla Diamonds® in this gorgeous band from Le Vian®. Crafted of 14K Vanilla Gold®, the ring has a total diamond weight of 5/8 carat. Le Vian®. Discover the Legend. Diamond Total Carat Weight may range from .58 – .68 carats. Sapphire is commonly subjected to enhancement processes or treatments such as heating and diffusion. Gently clean by rinsing in warm water and drying with a soft cloth.