Donaldson shot a four-day total of 18-under to clinch the title by four shots over challengers Anthony Wall, Rafa Cabrera-Bello, Fabrizio Zanotti and Mikael Lundberg in front of 30,000 spectators in Northern Ireland.
Jeev started the final day with a double bogey, but quickly made up with birdies on the second and fourth. An eagle on the ninth saw him turn in two-under, but bogeys on 10th and 14th set him back again.
He ended with a birdie on the 18th and signed a card of 71 to be six-under and tied 30th overall.
Considering he started the week with a seven-under 65, and was eight-under through 36 holes, it was a disappointing weekend over which he shot 75 and 71.
The 36-year-old Donaldson held the overnight lead, but found himself looking up at the leaderboard before he had even teed off due to Mikael Lundberg
