Here is the full list of all 32 Final Fantasy VII trophies - there are 13 bronze, 13 silver, 5 gold and 1 platinum.
Complete FINAL FANTASY VII
Defeat the Diamond Weapon
Learn Chaos—Vincent's last Limit Break
Obtain the Bahamut ZERO Materia
Raise a Materia to Lv. 5
Learn Omnislash—Cloud's last Limit Break
Learn Final Heaven—Tifa's last Limit Break
Learn Catastrophe—Barret's last Limit Break
Obtain the Bahamut Materia
Have Vincent join your party
Win the Chocobo Racing mini-game
Use a summon Materia in battle
Have your whole party fall in battle
Have Yuffie join your party
Get Don Corneo to choose Cloud over the two females
Emerge victorious from your first battle
Use a Limit Break
Obtain all trophies
Go on a date with Barret in the Gold Saucer
Score 10,050 points or more in G-Bike at the Gold Saucer
Obtain the Leviathan Materia
Obtain 99,999,999 gil
Reach Lv. 99 with one character
Obtain the Knights of the Round Materia
Learn Great Gospel—Aeris's last Limit Break
Learn Cosmo Memory—Red XIII's last Limit Break
Learn All Creation—Yuffie's last Limit Break
Learn Slots—Cait Sith's last Limit Break
Learn Highwind—Cid's last Limit Break
Obtain the Master Summon Materia
Defeat the Ruby Weapon
Defeat the Emerald Weapon