While Sapphires are available in a wide range of colors from yellow to pink, green to purple, violet to orange, the Blue Sapphire is the most popular. I am often called upon to design engagement rings using a blue sapphire instead of a diamond as the centerpiece. 

These earrings are set with trillion cut Rhodolite Garnets and Diamonds in 18K Yellow Gold

Blue Zircon has a lively, natural light to medium slightly greenish-blue color with brilliance that rivals a diamond. I love designing with blue zircon, look for blue zircons in my upcoming collections!