Diamonds and Scoundrels: My Life in the Jewelry Business

* In 2015, more than $30 billion of jewelry was sold in the United States alone. Even though this number has declined somewhat in the past three years, it is still quite high. Worldwide, if you include watches, revenue from sales in 2017 was $63.6 billion, and by 2021 this number is expected to increase to $67.4 billion.

* There are currently 111,979 jewelry businesses in the United States.

* According to the National Association of Women Business Owners, women-owned businesses in the US total more than 11.6 million firms, employing nearly 9 million people, and generating $1.7 trillion in sales as of 2017.