Lush large White Shell Pearl (about 12mm) surrounded by a multitude of White Topaz in a star or flower shape set in sterling and then dipped in 18K White Gold. A stunning piece. Design Theory Price $125What is a shell pearl? The shell pearl is laboratory made from the shell of an oyster. The process of making a shell pearl involves several different stages. The raw material for the base of the pearl is the sea shell, which is coated and polished to the final shape of the pearl. In order to produce a good quality pearl, a key ingredient is what we call a 'mother of pearl bead'. This element adds weight, value and durability to the pearl.