Blue Sapphire is the gem most often used to celebrate those born in September as well those born under the sign of Aquarius. This unique stud features a faceted 4mm genuine blue sapphire with a bead detail border and a friction back post. The approximate diameter is 8mm (5/16 inch) and the total gemstone weight for the pair is 0.76 of a carat. The color range varies on all natural stones so please allow for slight variations in shades. Gemstone treatment: heat enhanced. E11937 2 Genuine blue sapphires, 4mm faceted, 0.76 cttw Polished 14k white gold friction back post design Approximate diameter 8mm (5/16 inch) Includes a custom Black Bow Jewelry Company gift box