Gulfstream IV / G350 / G450
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Multiengine; Other type rated in this a/c
Flight Crew Last 90 Days 30; Flight Crew Total 15500; Flight Crew Type 2500
Inflight Event / Encounter Wake Vortex Encounter
Air Traffic Control Issued New Clearance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Took Evasive Action
Procedure; Environment - Non Weather Related
Descend via STAR.  We didn't know we were in trail and aircraft must have been far enough ahead of us that we didn't see it on TCAS.  Encountered wake turbulence.  Approx 25 degrees of roll and a 5 degree pitch up.  We were at max landing weight; close to Vref speed.  I manually flew the aircraft; co-Captain increased power; as requested; and we recovered.  Returning to altitude we encountered it again; but not as bad; plus we were faster.  We told the controller we were taking a heading.  The controller initially balked; then canceled approach clearance and gave us a heading and then vectors to rejoin the approach.  The combination of events left us slightly high and slightly fast; but the airport was seen from about 10 miles out.  We stabilized and landed normally. After landing I asked the Ground Controller type of aircraft had caused our wake turbulence encounter.  '737'; without the variant number.  I believe it was a 737-700.  As big is my aircraft is I didn't think a 737 could cause as much roll and pitch as it did.
Reporter stated ATC felt they had sufficient spacing.
G-IV Captain reported encountering wake turbulence on arrival into SAN in trail of a B737.