ISCOM/370 Blue Nile and Diamond Retailing Case Study

This should be very easy to do.
Resource: Supply Chain Management: Strategy, Planning, and Operation, Ch. 4
Read the Blue Nile and Diamond Retailing Case Study on pages 103-107 in Supply Chain Management: Strategy, Planning and Operations, Ch. 4.
Preparean 4 -slide Microsoft® PowerPoint® presentation with speaker notes, and address the following:
success factors in diamond retailing for Blue Nile, Zale’s, and Tiffany’s.
What advice would you give to each of the three companies regarding their future strategy and structure?
Cite your references.