How did Harry Winston get the Hope Diamond in the first place?

Harry Winston purchased the Hope Diamond as part of a collection.

According to Wikipedia:

"When Ms. McLean died in 1947, she bequeathed the diamond to her grandchildren through a will which insisted that her former property would remain in the custody of trustees until the eldest child had reached 25 years of age. This requirement would have prevented any sale for the next two decades. However, the trustees gained permission to sell her jewels to settle her debts, and in 1949 sold them to New York diamond merchant Harry Winston. He purchased McLean's 'entire jewelry collection'."