Jewelry, Eyewear and Watch Design Isi Pendant jewel by Gabbin Isabella Isi it is a project that consists in a convertible pendant for woman and man in 18Kt of gold and diamonds 3,6 ct, but it is available also in silver and other stones. The jewel peculiarity is the capability to change shape in just one move. The transformation happens thanks to an easy mechanism that has been patented. Starting from a geometric shape like a sphere, it can change into a cross or other shapes, depending on the model. Historically the jewel recall the creativity of the jewelers and watchmakers of the 1800s and early 1900s.