The first one is the white / yellow pearls which is the most common pearls, covers 95% of the pearls darbukas made in Egypt. The second one is the blue pearls which is very rare an expensive.
The blue pearl calls also abalone and the majority of abalone species are found in cold waters, such as off the coasts of New Zealand, South Africa, Australia, Western North America, and Japan. The shell colors of the abalone is a mix of an amazing blue, green and turquoise and these colors make the darbuka so glory and outstanding. There are many artists who use the abalone shells for making decorative items and it uses also as a source of mother of pearl for precious jewelry, buttons, buckles, and variety of inlays.
The process of building blur pearl darbuka is very complicated and it takes around 3 -