Blue Topaz is the gem most often used to celebrate those born in December as well as the 4th wedding anniversary. This unique stud features a faceted 4mm genuine Swiss blue topaz 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 0.66 of a carat. The color range varies on all natural stones so please allow for slight variations in shades. Gemstone treatment: heat enhanced. E11940 2 Genuine Swiss blue topaz, 4mm faceted, 0.66 cttw Polished 14k white gold friction back post design Approximate diameter 8mm (5/16 inch) Average metal weight is 0.79 grams Includes a custom Black Bow Jewelry Company gift box