Tulu & co Office is Located at Downtown LA ( jewelry District ),We are Design,make wax, mold, and manufacturing of all kind of Silver & Gold Jewelry, Inlaid Opal ,Micro Pave Setting Jewelry,Larimar,All kind of Gem Stones & Specially Our company is world one the unique companies that manufacturing many kinds of Changing color according to the ambient lighting,Alexandrites,Turmaline,Tanznite,Florite,,are some of them, call for more info