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Student spreadsheet for case W17163.

Student spreadsheet (hard) for case W17145.

Student spreadsheet (easy) for case W17145.

Instructor Spreadsheet to accompany product 8B17N011.

Student Spreadsheet to accompany product 9B17N011.

Student spreadsheet for case W17138.

Student spreadsheet for case UV7464.

Student spreadsheet for case W17123.

Spreadsheet for product 8B17A008.

Instructor spreadsheet for product 8B17N005.

Student spreadsheet for product 9B17N005.

Student Spreadsheet for product 9B17B003.

Student spreadsheet for case W17108.

Spreadsheet supplement for case 216052.

In September 2014, Tom Montgomery (SVP of strategic initiatives at the De Beers Group) and his team launched a pilot program in the United States to explore the $1 billion diamond market for pre-owned (recycled) diamonds. According to Montgomery, the motivation for the pilot program was to improve the consumer reselling experience and to enhance "diamond equity". Somewhat paradoxically, consumers typically received very low prices when they tried to sell diamonds (5-20% of the original retail price) leaving them reluctant to purchase diamonds in the future and making them into ambassadors of ill will. At a meeting scheduled for November 2015, the De Beers Executive Committee would have to decide whether to end the pilot program, extend it for another year to gather more information, or convert it into a new standalone business unit. Because De Beers had historically focused on producing rough diamonds (the "upstream" business), yet the new business unit offered an opportunity to enter and enhance the market for polished diamonds (the "downstream" business), the decision was particularly noteworthy.

Student spreadsheet for case UV7269.

Student spreadsheet for case UV7414.

Student spreadsheet for case KEL996.

Student spreadsheet for case UV2288.

Instructor Spreadsheet for 8B17A006.