18K Yellow Gold Diamond, Black Onyx and Malachite Ring

This is a 18K yellow gold ring in a size 7. (Can be sized) There are small white diamonds going down a split shank side and also in a halo around the center stone. There is an outside halo of black onyx and a center stone, square cut, in malachite. The toal weight of diamonds is 0.66ct. Total weight of malachite is 4.12ct and total weight of black onyx is 1.27ct.