Top jewellery houses

 I'm a second-year jewelry design student and these are my top 10 jewelry houses from the richest:

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1. Harry Winston

2. Cartier

3. Van Cleef & Arpels 

4. Buccellato 

5. Tiffany & Co

6. Graff

7. Piaget

8. Bulgari

9. Mikimoto

10. Chopard 

According to me the top 5 jewelry houses from this top 10 are:

1.Cartier

2. Tiffany & Co

3. Rolex

4. Bulgari

5. Van Cleef & Arpels