Work of diamants, including the diamant of industrial quality: sawing, cutting, burnishing, etc.
Manufacture of worked precious stones (precious or fine), except diamants
Manufacture of stones of industrial quality (except diamants) and of synthetic or regenerated stones
Manufacture of costume jewellery and similar items, nor plated, nor covered with precious metals, jewellery items containing artificial stones: artificial precious stones, synthetic diamants, etc.
Trade intermediaries for watches, articles in precious metals and jewellery
Wholesale trade of raw diamants and worked diamants
Processing of diamonds
Processing of jewels (with the exception of diamonds) and of semi-precious stones
Production of jewellery
Production of imitation jewellery and similar products
Wholesale in diamonds and other types of gems
Retail trade in clocks and gems in specialised shops