The youngster from Middlesex, who had three previous professional titles under his belt, secured a total of £31,117 winnings for his successful campaign at Crondon Park.
“I’ve won Power Snooker, a PTC, the Shoot-Out and now this so I need to do it in a ranking event,” said Gould, 21.
“I’ve put in more practice recently and Stephen Feeney at Site Rite has been sorting me out and the hard work is beginning to pay off.
“With the winning break, I could have dropped the blue in and played safe but I took the brown on, got on a red and was able to clear up.
“Now I’ve got three weeks off which is unheard of for a snooker player nowadays but I’m looking forward to the World Championship.... Happy days!”
Gould's success was all the more impressive considering the quality of the field he was facing in the final stages: in-form Ding Junhui, Mark Allen, John Higgins, Barry Hawkins and Marco Fu completed the final seven line-up.
Earlier in the day, world number 21 Gould had finished third in the table with three wins from six group matches with Carter top and Ding second, both having won four of their matches.
Fu completed the top four, who went through to the semi-finals where both Fu and Ding were despatched 3-0 by Carter and Gould respectively.
In the final, Carter forced a deciding frame but Gould stepped up when it counted with a break of 100 in the fifth to lift the title.
As a consolation for Carter, he picked up a cheque for £20,800.
Martin Gould 3-2 Ali Carter
Ding Junhui 0-3 Martin Gould
Ali Carter 3-0 Marco Fu
Winners' group day two results
John Higgins 0-3 Barry Hawkins
Ali Carter 0-3 Martin Gould
Mark Allen 0-3 Marco Fu
Ding Junhui 3-2 Barry Hawkins
Ali Carter 3-1 Marco Fu
John Higgins 3-0 Martin Gould
Ding Junhui 1-3 Martin Gould
Ali Carter 3-0 Barry Hawkins
John Higgins 1-3 Mark Allen
Winners' group table after day two
1. Carter 6 4 2
2. Ding 6 4 2
3. Gould 6 3 3
4. Fu 6 3 3
5. Allen 6 3 3
6. Higgins 6 2 4
7. Hawkins 6 2 4