K. Mikimoto Pearl Pin, AAA 4.5-7.0 MMMeasuring 1-1/2 x 2- ? inches, this quality AAA pearl pin is designed by K. Mikimoto, known as the world’s best pearls quality! Pearls are graduated 4.5-7.0 mm and are set in a leaf style design Hallmarked, and 14 karat yellow goldGIA Gemologist inspected and evaluated