Mepụta ụdị nkebi ahịrịokwu a dị mgbagwoju anya Arthur Monnickendam, onye isi oche nke atọ, nọchitere anya ụlọ ọrụ diamond na Chamber of Commerce nke London.
N'ezie, ụdị nkebi ahịrịokwu ahụ dị mgbagwoju anya bụ "Arthur Monnickendam, onye isi oche nke atọ nke azụmahịa ahụ, nọchitere anya ụlọ ọrụ diamond na London Chamber of Commerce wee bụrụ onye otu CIBJO, World Jewellery Confederation, na-anọchite anya United Kingdom. "