Harry Diamond Net Worth 2025: Rory McIlroy’s Caddie Earnings, Career & Masters Victory

Harry Diamond’s net worth in 2025 reflects years of loyalty, precision, and quiet success on the world’s biggest golf stages. As Rory McIlroy’s longtime caddie and close friend, Diamond has played a behind-the-scenes role in one of golf’s most prolific modern careers—most recently culminating in McIlroy’s emotional 2025 Masters victory.

Let’s take a look at Harry Diamond’s estimated net worth, his relationship with McIlroy, and how his role in professional golf has turned into a highly lucrative career.

What is Harry Diamond’s net worth in 2025?

Harry Diamond has an estimated net worth of $2 million in 2025.

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This figure is based on reported caddie earnings, bonuses from McIlroy’s tournament wins, and his prior involvement in the family property business in Belfast. Though he keeps a low profile off the course, Diamond has been a key part of McIlroy’s inner circle for years—now reaping both emotional and financial rewards as McIlroy returned to major-winning form.

What does Harry Diamond do for a living?

Harry Diamond is a professional golf caddie, best known for his long-standing partnership with Rory McIlroy.

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Born in Belfast, Northern Ireland, Diamond and McIlroy have been friends since their teenage years, both having honed their skills at Holywood Golf Club. While Diamond was a successful amateur golfer—representing Ireland in top-level competitions—he never turned professional, instead focusing on his family’s property business before stepping into caddying full-time in 2017.

Today, he travels the world alongside McIlroy, providing tactical input, emotional stability, and decades of shared trust.

Harry Diamond’s earnings explained — how does he make money?

Harry Diamond’s primary source of income is his work as a caddie, but his net worth is bolstered by previous family business involvement:

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• Caddie Salary – Diamond reportedly earns a weekly salary of $3,000–$4,000 while on tour with McIlroy, regardless of placement.
• Bonuses – Standard caddie contracts award 10% of the golfer’s prize money for a win, 7% for top-10 finishes, and 5% otherwise. Based on McIlroy’s recent performances:
  • $420,000 for McIlroy’s 2025 Masters win ($4.2 million prize)
  • Estimated $870,000–$900,000 in additional bonuses from McIlroy’s 2025 season
• Past Seasons – Over his time with McIlroy, Diamond has been on the bag for 26 professional wins, many of which came with multi-million-dollar payouts.
• Private Investments – Before caddying full-time, Diamond was involved in real estate via his family’s property business in Belfast, likely contributing to his long-term wealth.

With consistent work and high-stakes payouts, Diamond has turned his role from friendly favor to financially fruitful profession.

What is Harry Diamond doing in 2025?

In 2025, Harry Diamond is basking in the glow of Rory McIlroy’s historic Masters win, where the two finally completed the career Grand Slam together after an 11-year major drought.

Their relationship continues to be one of the most stable in modern golf—built on deep friendship, mutual trust, and shared ambition. Diamond’s quiet composure was on full display at Augusta as he stood by McIlroy’s side during the emotional playoff victory.

Going forward, Diamond will continue to travel as part of McIlroy’s elite support team, eyeing future wins on the PGA Tour and in major championships.